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Detecting Cosmological Phase Transitions with Taiji: Sensitivity Analysis and Parameter Estimation

T0 review · 3 major / 5 minor · reviewed 2026-08-16 · deepseek-v4-flash

Pith's one-line read The paper claims Taiji can detect first-order phase-transition gravitational-wave backgrounds with peak energy density above about 1.4e-11 across most of its band, and measure the peak frequency to better than 10 percent for stronger…

desk verdict Useful Taiji-specific FOPT sensitivity map, but the headline threshold rests on undocumented per-run priors that contradict Table I. read the letter →

arxiv 2504.16712 v2 pith:JAAR3UAG submitted 2025-04-23 gr-qc astro-ph.COastro-ph.IM

classification gr-qcastro-ph.COastro-ph.IM
keywords Taijigravitationalwavebackgroundfirst-orderphasetransitionsBayesianparameterestimationdoublewhitedwarfconfusionnoisespace-basedobservatoryelectroweaktransitionstochastic
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

The paper asks whether Taiji, the Chinese space-based gravitational-wave observatory, can detect the stochastic background produced by first-order phase transitions in the early universe once realistic foregrounds are included. Using a simulated four-year mission (three years after a 75% duty cycle), it combines Taiji instrumental noise, galactic double-white-dwarf confusion noise, and the extragalactic compact-binary background, injects phase-transition signals with a broken power-law spectrum, and recovers them with a Bayesian pipeline. It finds a detection threshold of $\Omega_{\rm PT}\gtrsim 1.4\times10^{-11}$ across most of the band, with best sensitivity near $10^{-3}$ to $10^{-2}$ Hz, and peak-frequency precision better than 10% for $\Omega_{\rm PT}\gtrsim 1.1\times10^{-10}$. If correct, these numbers give concrete sensitivity targets for electroweak-scale new physics, including scenarios connected to baryogenesis and dark matter production.

What carries the argument

The load-bearing object is the two-parameter broken power-law spectral template $P(f)$ with amplitude $\Omega_{\rm PT}$ and peak frequency $f_{\rm PT}$, which defines both the injected signals and the signal model the fit must recover. Around it the paper constructs a full simulation-inference chain: Taiji noise power spectral densities for optical measurement and test-mass acceleration; the orthogonal A/E/T time-delay-interferometry channels and their response functions; a fixed broken power-law double-white-dwarf foreground and a fixed power-law extragalactic compact-binary foreground; variance-minimizing frequency binning; and a hybrid Gaussian/lognormal likelihood. Bayes factors and Deviance Information Criterion differences carry the detection claim, while nested-sampling posteriors carry the parameter-estimation claim.

What would settle it

Rerun the paper's 100-injection grid with the double-white-dwarf foreground amplitude $A_1$ raised by a factor of 3; if the $\Omega_{\rm PT}\gtrsim1.4\times10^{-11}$ detection threshold does not shift upward, the quoted threshold is an artifact of the adopted foreground model. The same grid with a sound-shell spectral template instead of the broken power law would test whether the detection and $f_{\rm PT}$ precision claims are tied to the specific assumed shape.

Watch

Extended reading notes

Core claim

On the paper's own terms, the claim is that Taiji can both detect and characterize a first-order phase-transition gravitational-wave background whose spectrum is the acoustic broken power law $P(f)=(f/f_{\rm PT})^3[7/4+3(f/f_{\rm PT})^2]^{-7/2}$. Across a grid of 100 injections spanning $\Omega_{\rm PT}$ from $5\times10^{-12}$ to $5\times10^{-10}$ and $f_{\rm PT}$ from $4\times10^{-4}$ Hz to $10^{-2}$ Hz, the Bayesian analysis recovers the injected amplitudes and peak frequencies with no significant bias; the relative amplitude uncertainty shrinks as signal strength grows, and $\Delta f_{\rm PT}/f_{\rm PT}$ drops below 0.1 once $\Omega_{\rm PT}\gtrsim 1.1\times10^{-10}$. Model selection with both Bayes factors and the Deviance Information Criterion marks the phase-transition component decisively detected when the peak energy density exceeds roughly $1.4\times10^{-11}$ over most of the band, and the two metrics agree across the grid.

Load-bearing premise

The load-bearing premise is that the adopted broken power-law template for the phase-transition signal and the fixed double-white-dwarf foreground parameters describe the real signals well enough that recovering these simulated injections reflects true detection capability.

Editorial extensions

If this is right

  • If the thresholds hold, Taiji alone can act as a discovery instrument for electroweak-scale phase transitions in strongly supercooled, composite-Higgs, and hidden-sector scenarios.
  • The better-than-10% peak-frequency measurement above $\Omega_{\rm PT}\simeq 1.1\times10^{-10}$ makes $f_{\rm PT}$ a usable observable, which through $f_{\rm PT}\simeq 10^{-6}(H_*R_*)^{-1}(T_*/100\,{\rm GeV})$ Hz constrains the transition temperature and inverse mean bubble separation.
  • The agreement between the Bayes-factor and DIC heatmaps provides a cross-check that the detection claims are not an artifact of one model-selection statistic.
  • Below roughly $1.4\times10^{-11}$, or for peak frequencies below about $1.2\times10^{-3}$ Hz, the double-white-dwarf confusion noise masks the signal and parameter estimates degrade sharply, so those regions should be treated as foreground-limited.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • Because the foreground parameters are fixed to one population-model estimate, I would read $1.4\times10^{-11}$ as a floor: if the actual double-white-dwarf confusion noise is higher or spectrally different, the detection threshold moves upward.
  • The same pipeline could be rerun with sound-shell or turbulence templates; the resulting shift in the $\Omega_{\rm PT}$-$f_{\rm PT}$ threshold map would show which spectral features Taiji is genuinely sensitive to rather than just the assumed broken power law.
  • Since the posteriors in Table I constrain the DWD foreground parameters to a few percent, treating them as free in the fit rather than fixed is a cheap robustness upgrade and would make the quoted thresholds more conservative.
  • The paper's own note that a single detector cannot cross-correlate indicates that joint operation with LISA or TianQin could push the threshold down; an order-of-magnitude improvement is plausible but needs a joint-simulation demonstration.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 5 minor

Summary. This manuscript presents a simulation-based forecast of Taiji's sensitivity to stochastic gravitational-wave backgrounds from first-order phase transitions. The analysis injects a two-parameter broken power-law spectrum (Ω_PT, f_PT) into simulated Taiji data that include analytic instrumental noise, a broken-power-law galactic double white dwarf foreground, and an extragalactic compact binary background. The authors use a hybrid Gaussian/log-normal likelihood and nested sampling to perform parameter estimation on a 100-point injection grid, and they report detection thresholds via Bayes factors and the Deviance Information Criterion, as well as parameter-precision curves. The headline claims are a detection threshold Ω_PT ≳ 1.4×10^-11 and frequency estimation better than 10% for Ω_PT ≳ 1.1×10^-10.

Significance. If correct, the result would provide a concrete, quantitative sensitivity target for electroweak-scale phase transitions with Taiji and a useful comparison with LISA forecasts. The paper has real strengths: the benchmark posterior in Table I and Fig. 2 is clean and physically sensible; the agreement between Bayes factors and DIC is a useful internal consistency check; and the noise and foreground modeling is explicit. The main caveats are that the headline threshold is an injection-recovery of the same template and foreground model used in the analysis, and that the documented priors are inconsistent with a large fraction of the injection grid. Because no code or data are released, the central numbers are not independently reproducible from the manuscript as written.

major comments (3)
  1. [Section III, Table I and injection grid] Table I reports priors log10 Ω_PT ~ U(-10.609,-10.209) and log10(f_PT/Hz) ~ U(-2.355,-1.955), i.e. Ω_PT ∈ [2.46×10^-11, 6.18×10^-11] and f_PT ∈ [4.4×10^-3, 1.1×10^-2] Hz. The grid defined in Section III contains Ω_PT values from 5×10^-12 to 5×10^-10 and f_PT values from 4×10^-4 to 1×10^-2 Hz. Only two of the ten Ω_PT rows (3.9×10^-11 and 6.5×10^-11) and three of the ten f_PT columns (4.9×10^-3, 7×10^-3, and 1×10^-2 Hz) lie inside the stated priors. The weakest injections that set the headline threshold, including Ω_PT = 1.4×10^-11, lie outside the prior support. If the same priors were used for all 100 runs, the recovered medians in Figs. 3 and 4 at those points cannot be produced by the stated procedure; if the priors were recentered on each injection, the Bayes factors in Fig. 7 and Eq. (33) are computed with signal-informed priors and are not blind-search evidence. The manuscript does not state which case applies. Please document the per-run priors, or use a single prior covering the full grid, and recompute or re-derive the threshold accordingly.
  2. [Section II.A-I.D and Section III] Equations (2), (15), and (17) define the signal and foreground models, and the same functional forms are used to generate the synthetic data and to fit them. The reported thresholds therefore measure the recoverability of the assumed broken power-law spectrum with fixed foreground shapes, not the detectability of FOPT signals in general. The abstract's claim that Taiji can 'robustly detect and characterize phase transition signals' should be qualified as 'within the template family and foreground model considered.' As a concrete test, the authors should vary either the high-frequency slope of the FOPT template or the DWD foreground parameters within their population-synthesis uncertainties and report how the Ω_PT threshold shifts. The conclusion already notes the need for more physically motivated spectral shapes, but the abstract and the threshold claims should carry this qualification.
  3. [Section III, Eqs. (22)-(24)] The optimal binning weights in Eq. (24) are defined through D_th(f_j, θ, n), which depends on the very signal parameters being estimated. The manuscript does not explain how the weights are set during the MCMC runs: if the true injected parameters are used, the binned data are constructed with knowledge of the signal and the subsequent likelihood is partly circular; if a fixed reference model is used, the stated optimality is not realized. Please specify the binning protocol (e.g., an iterative scheme or a fixed fiducial model) and, if necessary, show that the thresholds are insensitive to the choice.
minor comments (5)
  1. [Figures 3 and 4] The axis labels in Figs. 3 and 4 appear to have missing negative exponents, e.g., 'PT = 5.0 × 10 12' should presumably be '5.0 × 10^-12'; please correct the rendering.
  2. [Section I] The introduction refers once to 'TinQin'; this should be 'TianQin'.
  3. [Section IV] The comparison to 'current constraints [75,76]' is made without noting that NANOGrav and EPTA operate at nHz frequencies; a direct comparison with Taiji's mHz band is not meaningful without explaining the frequency extrapolation involved.
  4. [Throughout] No code or data are released; a reproducibility statement or a link to the injection and recovery scripts would help readers verify the grid results.
  5. [Section IV] The concluding paragraph on single-detector limitations is appropriate and should be reflected in the abstract's 'robustly detect' wording, which currently sounds stronger than the analysis supports.

Circularity Check

0 steps flagged · score 2.0 of 10

No circular derivation found; the sensitivity thresholds are injection-recovery forecasts, with only minor self-cited foreground inputs that are not circularly load-bearing.

full rationale

The paper's core statements are conditional simulation forecasts, not equations that reduce to their inputs. The FOPT signal template P(f) in Eq. (2) is adopted from the external numerical simulation fit [11]; the DWD foreground parameters in Eq. (15) and the ECB background in Eq. (17) are taken from population-synthesis fits in refs [67,68] and [69]. Although some of those refs share authors with the present paper, they are external inputs (population-model fits) and are not derived from the Taiji detection claim, so they do not make the argument circular. No fitted parameter is renamed as a prediction: the quoted thresholds (Omega_PT greater than about 1.4e-11; 10% frequency precision for Omega_PT greater than about 1.1e-10) are obtained by injecting the assumed broken power-law signal into synthetic Taiji noise and recovering it with the same model, which is a standard, self-contained Bayesian forecast. The Bayes factor and DIC maps measure recovery of that assumed spectrum, so the claim is that Taiji can recover this template, not a first-principles guarantee for arbitrary FOPT spectra; the paper itself flags the single-detector limitation and the restricted template in Section IV. One non-circular transparency concern should be flagged: the priors shown in Table I cover only the benchmark point, while the grid in Section III extends to Omega_PT = 5e-12 and fPT = 4e-4 Hz, well outside those ranges; the per-run priors for those points are undocumented, which is a reproducibility and possible evidence-inflation risk, but absent a statement of the per-run priors it is not an exhibited circular reduction. Accordingly the circularity score is 2, reflecting only minor self-citation that is not circularly load-bearing.

Assumptions & free parameters 8 free parameters · 7 assumptions · 0 invented entities

The central claim rests on adopted noise and foreground models plus the broken power-law signal template; no new physical entities are introduced. The instrumental amplitudes and foreground parameters come from previous works and are fixed in the grid, so the threshold map inherits their uncertainties without propagating them.

free parameters (8)
  • Instrumental OMS noise amplitude P = 8 (fixed input)
    Adopted from Taiji design [60]; held fixed in grid runs and varied in the benchmark; sets high-frequency sensitivity.
  • Acceleration noise amplitude A = 3 (fixed input)
    Adopted from Taiji design [60]; sets low-frequency sensitivity and is varied in the benchmark.
  • DWD foreground amplitude A1 = 3.98e-16 (log10 -15.4)
    From refs [67,68]; varied in benchmark with posterior -15.39 +0.04/-0.05; fixed in the grid and controls low-frequency confusion noise.
  • DWD foreground slope alpha1 = -5.7
    From refs [67,68]; varied in benchmark; sets the low-frequency spectral slope of the DWD foreground.
  • DWD foreground amplitude A2 = 4.79e-7 (log10 -6.32)
    From refs [67,68]; varied in benchmark; controls the high-frequency break in the DWD foreground.
  • DWD foreground slope alpha2 = -6.2
    From refs [67,68]; varied in benchmark; sets the steep high-frequency falloff of the DWD foreground.
  • ECB amplitude A_ECB = 1.8e-9 at 25 Hz (log10 -8.74)
    From ref [69]; varied in benchmark with posterior -8.69 +0.15/-0.18; fixed in the grid as the extragalactic compact binary foreground.
  • ECB spectral index alpha_ECB = 2/3
    From ref [69]; varied in benchmark with posterior 0.68 +0.04/-0.05; fixed in the grid as the canonical power-law index.
assumptions (7)
  • domain assumption Signal and instrumental noise are stationary, Gaussian, and mutually uncorrelated.
    Section II.B lists these as simplifications; the likelihood and variance estimates rely on them.
  • domain assumption The FOPT SGWB is fully described by the broken power-law template P(f) in Eq. (2) with fixed f^3 and f^-4 slopes.
    Section II.A; all injections and recovery use this template, so the thresholds are template-specific.
  • domain assumption The DWD confusion noise is modeled by the broken power law Eq. (15) with parameters from refs [67,68] and no residual discrete-source structure.
    Section II.C; if the real foreground is modulated or subtracted differently, the thresholds change.
  • domain assumption The ECB background is a single power law Eq. (17) with index 2/3 across the Taiji band.
    Section II.D; adopted from ref [69] without spectral breaks in the Taiji band.
  • domain assumption The A/E/T TDI channels are noise-orthogonal, with A and E identical and T a null channel; analytical response functions from ref [62] apply.
    Section II.B; used to define channel sensitivities in Eqs. (10)-(14).
  • domain assumption A 75% duty cycle over 4 years gives an effective 3-year observation with N_c=94 chunks of 11.5 days.
    Section III; the signal-to-noise ratio and evidence scale with observing time, so this choice anchors all thresholds.
  • domain assumption The hybrid Gaussian/log-normal likelihood of Eq. (30) correctly models the distribution of segment-averaged power spectral densities.
    Section III; adopted from ref [71], but the 1/3 and 2/3 weighting is a heuristic choice.

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Cite this review

Pith. "Pith review of Detecting Cosmological Phase Transitions with Taiji: Sensitivity Analysis and Parameter Estimation." pith.science (2026). https://pith.science/paper/JAAR3UAG

@misc{pith2026250416712,
  author       = {Pith},
  title        = {Pith review of: Detecting Cosmological Phase Transitions with Taiji: Sensitivity Analysis and Parameter Estimation},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/JAAR3UAG}},
  note         = {Machine review of arXiv:2504.16712}
}
abstract

We investigate the capability of the Taiji space-based gravitational wave observatory to detect stochastic gravitational wave backgrounds produced by first-order phase transitions in the early universe. Using a comprehensive simulation framework that incorporates realistic instrumental noise, galactic double white dwarf confusion noise, and extragalactic compact binary backgrounds, we systematically analyze Taiji's sensitivity across a range of signal parameters. Our Bayesian analysis demonstrates that Taiji can robustly detect and characterize phase transition signals with energy densities exceeding $\Omega_{\text{PT}} \gtrsim 1.4 \times 10^{-11}$ across most of its frequency band, with particularly strong sensitivity around $10^{-3}$ to $10^{-2}$ Hz. For signals with amplitudes above $\Omega_{\text{PT}} \gtrsim 1.1 \times 10^{-10}$, Taiji can determine the peak frequency with relative precision better than $10\%$. These detection capabilities would enable Taiji to probe electroweak-scale phase transitions in various beyond-Standard-Model scenarios, potentially revealing new physics connected to baryogenesis and dark matter production. We quantify detection confidence using both Bayes factors and the Deviance Information Criterion, finding consistent results that validate our statistical methodology.

Figures

Figures reproduced from arXiv: 2504.16712 by the authors.

Figure 1
Figure 1. FIG. 1. Frequency-domain representation of synthetic Taiji A-channel observations (blue). We also show the [PITH_FULL_IMAGE:figures/full_fig_p008_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2. Posterior distributions of model parameters from Bayesian analysis using simulated Taiji data. [PITH_FULL_IMAGE:figures/full_fig_p010_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3. Comparison between injected and recovered peak frequencies ( [PITH_FULL_IMAGE:figures/full_fig_p013_3.png] view at source ↗
Figures from the paper (5 more)
Figure 4
Figure 4. Figure 4: FIG. 4. Comparison between injected and recovered amplitudes (Ω [PITH_FULL_IMAGE:figures/full_fig_p014_4.png]
Figure 5
Figure 5. Figure 5: FIG. 5. Measurement precision of the phase transition amplitude as a function of signal strength. The [PITH_FULL_IMAGE:figures/full_fig_p015_5.png]
Figure 6
Figure 6. Figure 6: FIG. 6. Frequency resolution capabilities of the analysis pipeline across the detection band. The plot [PITH_FULL_IMAGE:figures/full_fig_p016_6.png]
Figure 7
Figure 7. Figure 7: FIG. 7. Model selection analysis using the Bayes factors. The heatmap displays logarithmic Bayes factors [PITH_FULL_IMAGE:figures/full_fig_p017_7.png]
Figure 8
Figure 8. Figure 8: FIG. 8. Model selection analysis using the Deviance Information Criterion (DIC). The heatmap illustrates [PITH_FULL_IMAGE:figures/full_fig_p018_8.png]

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Forward citations

Cited by 4 Pith papers

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Reference graph

Works this paper leans on

82 extracted references · 11 canonical work pages · cited by 4 Pith papers

  1. [1]

    Observation of Gravitational Waves from a Binary Black Hole Merger,

    B. P. Abbottet al.(LIGO Scientific, Virgo), “Observation of Gravitational Waves from a Binary Black Hole Merger,” Phys. Rev. Lett.116, 061102 (2016), arXiv:1602.03837 [gr-qc]

  2. [2]

    Cosmological Backgrounds of Gravitational Waves,

    Chiara Caprini and Daniel G. Figueroa, “Cosmological Backgrounds of Gravitational Waves,” Class. Quant. Grav.35, 163001 (2018), arXiv:1801.04268 [astro-ph.CO]

  3. [3]

    Michele Maggiore,Gravitational Waves. Vol. 2: Astrophysics and Cosmology(Oxford University Press, 2018)

  4. [4]

    Cosmic Separation of Phases,

    Edward Witten, “Cosmic Separation of Phases,” Phys. Rev. D30, 272–285 (1984)

  5. [5]

    Gravitational radiation from cosmological phase transitions,

    C. J. Hogan, “Gravitational radiation from cosmological phase transitions,” Mon. Not. Roy. Astron. Soc.218, 629–636 (1986)

  6. [6]

    The Fate of the False Vacuum. 1. Semiclassical Theory,

    Sidney R. Coleman, “The Fate of the False Vacuum. 1. Semiclassical Theory,” Phys. Rev. D15, 2929– 2936 (1977), [Erratum: Phys.Rev.D 16, 1248 (1977)]

  7. [7]

    Decay of the False Vacuum at Finite Temperature,

    Andrei D. Linde, “Decay of the False Vacuum at Finite Temperature,” Nucl. Phys. B216, 421 (1983), [Erratum: Nucl.Phys.B 223, 544 (1983)]

  8. [8]

    Gravitational waves from the sound of a first order phase transition,

    Mark Hindmarsh, Stephan J. Huber, Kari Rummukainen, and David J. Weir, “Gravitational waves from the sound of a first order phase transition,” Phys. Rev. Lett.112, 041301 (2014), arXiv:1304.2433 [hep-ph]

Show all 82 references
  1. [9]

    Numerical simulations of acoustically generated gravitational waves at a first order phase transition,

    Mark Hindmarsh, Stephan J. Huber, Kari Rummukainen, and David J. Weir, “Numerical simulations of acoustically generated gravitational waves at a first order phase transition,” Phys. Rev. D92, 123009 (2015), arXiv:1504.03291 [astro-ph.CO]

  2. [10]

    Gravitational waves from bubble collisions: An analytic derivation,

    Ryusuke Jinno and Masahiro Takimoto, “Gravitational waves from bubble collisions: An analytic derivation,” Phys. Rev. D95, 024009 (2017), arXiv:1605.01403 [astro-ph.CO]

  3. [11]

    Shape of the acoustic gravitational wave power spectrum from a first order phase transition,

    Mark Hindmarsh, Stephan J. Huber, Kari Rummukainen, and David J. Weir, “Shape of the acoustic gravitational wave power spectrum from a first order phase transition,” Phys. Rev. D96, 103520 (2017), [Erratum: Phys.Rev.D 101, 089902 (2020)], arXiv:1704.05871 [astro-ph.CO]

  4. [12]

    Gravitational radiation from a bulk flow model,

    Thomas Konstandin, “Gravitational radiation from a bulk flow model,” JCAP03, 047 (2018), arXiv:1712.06869 [astro-ph.CO]

  5. [13]

    Vorticity, kinetic energy, and suppressed gravitational wave production in strong first order phase transitions,

    Daniel Cutting, Mark Hindmarsh, and David J. Weir, “Vorticity, kinetic energy, and suppressed gravitational wave production in strong first order phase transitions,” Phys. Rev. Lett.125, 021302 (2020), arXiv:1906.00480 [hep-ph]

  6. [14]

    Numerical simulations of gravitational waves from early-universe turbulence,

    Alberto Roper Pol, Sayan Mandal, Axel Brandenburg, Tina Kahniashvili, and Arthur Kosowsky, “Numerical simulations of gravitational waves from early-universe turbulence,” Phys. Rev. D102, 083512 (2020), arXiv:1903.08585 [astro-ph.CO]. 19

  7. [15]

    Gravitational wave spectra from strongly supercooled phase tran- sitions,

    Marek Lewicki and Ville Vaskonen, “Gravitational wave spectra from strongly supercooled phase tran- sitions,” Eur. Phys. J. C80, 1003 (2020), arXiv:2007.04967 [astro-ph.CO]

  8. [16]

    Decay of acoustic turbulence in two dimensions and implications for cosmological gravitational waves,

    Jani Dahl, Mark Hindmarsh, Kari Rummukainen, and David J. Weir, “Decay of acoustic turbulence in two dimensions and implications for cosmological gravitational waves,” Phys. Rev. D106, 063511 (2022), arXiv:2112.12013 [gr-qc]

  9. [17]

    Higgsless simulations of cosmological phase transitions and gravitational waves,

    Ryusuke Jinno, Thomas Konstandin, Henrique Rubira, and Isak Stomberg, “Higgsless simulations of cosmological phase transitions and gravitational waves,” JCAP02, 011 (2023), arXiv:2209.04369 [astro-ph.CO]

  10. [18]

    Generation of gravitational waves from freely decaying turbulence,

    Pierre Auclair, Chiara Caprini, Daniel Cutting, Mark Hindmarsh, Kari Rummukainen, Dani` ele A. Steer, and David J. Weir, “Generation of gravitational waves from freely decaying turbulence,” JCAP 09, 029 (2022), arXiv:2205.02588 [astro-ph.CO]

  11. [19]

    Shallow relic gravitational wave spectrum with acoustic peak,

    Ramkishor Sharma, Jani Dahl, Axel Brandenburg, and Mark Hindmarsh, “Shallow relic gravitational wave spectrum with acoustic peak,” JCAP12, 042 (2023), arXiv:2308.12916 [gr-qc]

  12. [20]

    Characterization of the gravitational wave spectrum from sound waves within the sound shell model,

    Alberto Roper Pol, Simona Procacci, and Chiara Caprini, “Characterization of the gravitational wave spectrum from sound waves within the sound shell model,” Phys. Rev. D109, 063531 (2024), arXiv:2308.12943 [gr-qc]

  13. [21]

    Gravitational Waves from Phase Transitions at the Elec- troweak Scale and Beyond,

    Christophe Grojean and Geraldine Servant, “Gravitational Waves from Phase Transitions at the Elec- troweak Scale and Beyond,” Phys. Rev. D75, 043507 (2007), arXiv:hep-ph/0607107

  14. [22]

    Phase transitions in the early universe,

    Mark B. Hindmarsh, Marvin L¨ uben, Johannes Lumma, and Martin Pauly, “Phase transitions in the early universe,” SciPost Phys. Lect. Notes24, 1 (2021), arXiv:2008.09136 [astro-ph.CO]

  15. [23]

    On the Anomalous Electroweak Baryon Number Nonconservation in the Early Universe,

    V. A. Kuzmin, V. A. Rubakov, and M. E. Shaposhnikov, “On the Anomalous Electroweak Baryon Number Nonconservation in the Early Universe,” Phys. Lett. B155, 36 (1985)

  16. [24]

    Progress in electroweak baryogenesis,

    Andrew G. Cohen, D. B. Kaplan, and A. E. Nelson, “Progress in electroweak baryogenesis,” Ann. Rev. Nucl. Part. Sci.43, 27–70 (1993), arXiv:hep-ph/9302210

  17. [25]

    Filtered Dark Matter at a First Order Phase Transition,

    Michael J. Baker, Joachim Kopp, and Andrew J. Long, “Filtered Dark Matter at a First Order Phase Transition,” Phys. Rev. Lett.125, 151102 (2020), arXiv:1912.02830 [hep-ph]

  18. [26]

    The Taiji Program in Space for gravitational wave physics and the nature of gravity,

    Wen-Rui Hu and Yue-Liang Wu, “The Taiji Program in Space for gravitational wave physics and the nature of gravity,” Natl. Sci. Rev.4, 685–686 (2017)

  19. [27]

    Taiji program: Gravitational-wave sources,

    Wen-Hong Ruan, Zong-Kuan Guo, Rong-Gen Cai, and Yuan-Zhong Zhang, “Taiji program: Gravitational-wave sources,” Int. J. Mod. Phys. A35, 2050075 (2020), arXiv:1807.09495 [gr-qc]

  20. [28]

    Laser Interferometer Space Antenna,

    Pau Amaro-Seoaneet al.(LISA), “Laser Interferometer Space Antenna,” (2017), arXiv:1702.00786 [astro-ph.IM]

  21. [29]

    TianQin: a space-borne gravitational wave detector,

    Jun Luoet al.(TianQin), “TianQin: a space-borne gravitational wave detector,” Class. Quant. Grav. 33, 035010 (2016), arXiv:1512.02076 [astro-ph.IM]

  22. [30]

    The gravitational wave background from cosmological compact binaries,

    Alison J. Farmer and E. Sterl Phinney, “The gravitational wave background from cosmological compact binaries,” Mon. Not. Roy. Astron. Soc.346, 1197 (2003), arXiv:astro-ph/0304393. 20

  23. [31]

    The LISA Gravitational Wave Foreground: A Study of Double White Dwarfs,

    Ashley J. Ruiter, Krzysztof Belczynski, Matthew Benacquista, Shane L. Larson, and Gabriel Williams, “The LISA Gravitational Wave Foreground: A Study of Double White Dwarfs,” Astrophys. J.717, 1006–1021 (2010), arXiv:0705.3272 [astro-ph]

  24. [32]

    On the gravitational wave background from compact binary coalescences in the band of ground-based interferometers,

    Xing-Jiang Zhu, Eric J. Howell, David G. Blair, and Zong-Hong Zhu, “On the gravitational wave background from compact binary coalescences in the band of ground-based interferometers,” Mon. Not. Roy. Astron. Soc.431, 882–899 (2013), arXiv:1209.0595 [gr-qc]

  25. [33]

    Gravitational wave background from binary systems,

    Pablo A. Rosado, “Gravitational wave background from binary systems,” Phys. Rev. D84, 084004 (2011), arXiv:1106.5795 [gr-qc]

  26. [34]

    The gravitational wave signal from the galactic disk population of binaries containing two compact objects,

    G. Nelemans, L. R. Yungelson, and Simon F. Portegies Zwart, “The gravitational wave signal from the galactic disk population of binaries containing two compact objects,” Astron. Astrophys.375, 890–898 (2001), arXiv:astro-ph/0105221

  27. [35]

    The astrophysical gravitational wave stochastic background,

    Tania Regimbau, “The astrophysical gravitational wave stochastic background,” Res. Astron. Astro- phys.11, 369–390 (2011), arXiv:1101.2762 [astro-ph.CO]

  28. [36]

    Detection methods for stochastic gravitational-wave back- grounds: a unified treatment,

    Joseph D. Romano and Neil J. Cornish, “Detection methods for stochastic gravitational-wave back- grounds: a unified treatment,” Living Rev. Rel.20, 2 (2017), arXiv:1608.06889 [gr-qc]

  29. [37]

    Galactic binary science with the new LISA design,

    Neil Cornish and Travis Robson, “Galactic binary science with the new LISA design,” J. Phys. Conf. Ser.840, 012024 (2017), arXiv:1703.09858 [astro-ph.IM]

  30. [38]

    Assessing the Impact of Unequal Noises and Foreground Modeling on SGWB Reconstruction with LISA,

    Jun’ya Kume, Marco Peloso, Mauro Pieroni, and Angelo Ricciardone, “Assessing the Impact of Unequal Noises and Foreground Modeling on SGWB Reconstruction with LISA,” (2024), arXiv:2410.10342 [gr- qc]

  31. [39]

    Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions,

    Chiara Capriniet al., “Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions,” JCAP04, 001 (2016), arXiv:1512.06239 [astro-ph.CO]

  32. [40]

    Detecting gravitational waves from cosmological phase transitions with LISA: an update,

    Chiara Capriniet al., “Detecting gravitational waves from cosmological phase transitions with LISA: an update,” JCAP03, 024 (2020), arXiv:1910.13125 [astro-ph.CO]

  33. [41]

    Observational prospects for phase transitions at LISA: Fisher matrix analysis,

    Chloe Gowling and Mark Hindmarsh, “Observational prospects for phase transitions at LISA: Fisher matrix analysis,” JCAP10, 039 (2021), arXiv:2106.05984 [astro-ph.CO]

  34. [42]

    Reconstructing physical parameters from template gravitational wave spectra at LISA: first order phase transitions,

    Chloe Gowling, Mark Hindmarsh, Deanna C. Hooper, and Jes´ us Torrado, “Reconstructing physical parameters from template gravitational wave spectra at LISA: first order phase transitions,” JCAP04, 061 (2023), arXiv:2209.13551 [astro-ph.CO]

  35. [43]

    Prospects for LISA to detect a gravitational-wave background from first order phase transitions,

    Guillaume Boileau, Nelson Christensen, Chloe Gowling, Mark Hindmarsh, and Renate Meyer, “Prospects for LISA to detect a gravitational-wave background from first order phase transitions,” JCAP02, 056 (2023), arXiv:2209.13277 [gr-qc]

  36. [44]

    Gravita- tional waves from first-order phase transitions in LISA: reconstruction pipeline and physics interpreta- tion,

    Chiara Caprini, Ryusuke Jinno, Marek Lewicki, Eric Madge, Marco Merchand, Germano Nardini, Mauro Pieroni, Alberto Roper Pol, and Ville Vaskonen (LISA Cosmology Working Group), “Gravita- tional waves from first-order phase transitions in LISA: reconstruction pipeline and physic...

  37. [45]

    Recovering a phase transition signal in simulated LISA data with a modulated galactic foreground,

    Mark Hindmarsh, Deanna C. Hooper, Tiina Minkkinen, and David J. Weir, “Recovering a phase transition signal in simulated LISA data with a modulated galactic foreground,” JCAP04, 052 (2025), arXiv:2406.04894 [astro-ph.CO]

  38. [46]

    Reconstructing early universe evolution with gravitational waves from supercooled phase transitions,

    Adam Gonstal, Marek Lewicki, and Bogumila Swiezewska, “Reconstructing early universe evolution with gravitational waves from supercooled phase transitions,” (2025), arXiv:2502.18436 [gr-qc]

  39. [47]

    The LISA-Taiji Network: Precision Localization of Coalescing Massive Black Hole Binaries,

    Wen-Hong Ruan, Chang Liu, Zong-Kuan Guo, Yue-Liang Wu, and Rong-Gen Cai, “The LISA-Taiji Network: Precision Localization of Coalescing Massive Black Hole Binaries,” Research2021, 6014164 (2021), arXiv:1909.07104 [gr-qc]

  40. [48]

    The LISA-Taiji network,

    Wen-Hong Ruan, Chang Liu, Zong-Kuan Guo, Yue-Liang Wu, and Rong-Gen Cai, “The LISA-Taiji network,” Nature Astron.4, 108–109 (2020), arXiv:2002.03603 [gr-qc]

  41. [49]

    Hubble parameter estimation via dark sirens with the LISA-Taiji network,

    Renjie Wang, Wen-Hong Ruan, Qing Yang, Zong-Kuan Guo, Rong-Gen Cai, and Bin Hu, “Hubble parameter estimation via dark sirens with the LISA-Taiji network,” Natl. Sci. Rev.9, nwab054 (2022), arXiv:2010.14732 [astro-ph.CO]

  42. [50]

    Forecast for cosmological parameter estimation with gravitational-wave standard sirens from the LISA-Taiji network,

    Ling-Feng Wang, Shang-Jie Jin, Jing-Fei Zhang, and Xin Zhang, “Forecast for cosmological parameter estimation with gravitational-wave standard sirens from the LISA-Taiji network,” Sci. China Phys. Mech. Astron.65, 210411 (2022), arXiv:2101.11882 [gr-qc]

  43. [51]

    Ability of LISA, Taiji, and their networks to detect the stochastic gravitational wave background generated by cosmic strings,

    Bo-Rui Wang and Jin Li, “Ability of LISA, Taiji, and their networks to detect the stochastic gravitational wave background generated by cosmic strings,” Phys. Rev. D109, 063520 (2024), arXiv:2311.07116 [astro-ph.CO]

  44. [52]

    Taiji-TianQin-LISA network: Precisely measuring the Hubble constant using both bright and dark sirens,

    Shang-Jie Jin, Ye-Zhu Zhang, Ji-Yu Song, Jing-Fei Zhang, and Xin Zhang, “Taiji-TianQin-LISA network: Precisely measuring the Hubble constant using both bright and dark sirens,” Sci. China Phys. Mech. Astron.67, 220412 (2024), arXiv:2305.19714 [astro-ph.CO]

  45. [53]

    On networks of space-based gravitational-wave detectors,

    Rong-Gen Cai, Zong-Kuan Guo, Bin Hu, Chang Liu, Youjun Lu, Wei-Tou Ni, Wen-Hong Ruan, Naoki Seto, Gang Wang, and Yue-Liang Wu, “On networks of space-based gravitational-wave detectors,” Fund. Res.4, 1072–1085 (2024), arXiv:2305.04551 [gr-qc]

  46. [54]

    Unveiling a mul- ticomponent stochastic gravitational-wave background with the TianQin+LISA network,

    Zheng-Cheng Liang, Zhi-Yuan Li, En-Kun Li, Jian-dong Zhang, and Yi-Ming Hu, “Unveiling a mul- ticomponent stochastic gravitational-wave background with the TianQin+LISA network,” Phys. Rev. D111, 043032 (2025), arXiv:2409.00778 [gr-qc]

  47. [55]

    Planck 2018 results. VI. Cosmological parameters,

    N. Aghanimet al.(Planck), “Planck 2018 results. VI. Cosmological parameters,” Astron. Astrophys. 641, A6 (2020), [Erratum: Astron.Astrophys. 652, C4 (2021)], arXiv:1807.06209 [astro-ph.CO]

  48. [56]

    Discriminating a gravitational wave back- ground from instrumental noise in the LISA detector,

    Massimo Tinto, J. W. Armstrong, and F. B. Estabrook, “Discriminating a gravitational wave back- ground from instrumental noise in the LISA detector,” Phys. Rev. D63, 021101 (2001)

  49. [57]

    Time delay interferometry for LISA,

    Massimo Tinto, F. B. Estabrook, and J. W. Armstrong, “Time delay interferometry for LISA,” Phys. Rev. D65, 082003 (2002)

  50. [58]

    The first round result from the TianQin-1 satellite,

    Jun Luoet al., “The first round result from the TianQin-1 satellite,” Class. Quant. Grav.37, 185013 (2020), arXiv:2008.09534 [physics.ins-det]. 22

  51. [59]

    Taiji data challenge for exploring gravitational wave universe,

    Zhixiang Ren, Tianyu Zhao, Zhoujian Cao, Zong-Kuan Guo, Wen-Biao Han, Hong-Bo Jin, and Yue- Liang Wu, “Taiji data challenge for exploring gravitational wave universe,” Front. Phys. (Beijing)18, 64302 (2023), arXiv:2301.02967 [gr-qc]

  52. [60]

    A brief analysis to Taiji: Science and technology,

    Ziren Luo, ZongKuan Guo, Gang Jin, Yueliang Wu, and Wenrui Hu, “A brief analysis to Taiji: Science and technology,” Results Phys.16, 102918 (2020)

  53. [61]

    The LISA optimal sensitivity,

    Thomas A. Prince, Massimo Tinto, Shane L. Larson, and J. W. Armstrong, “The LISA optimal sensitivity,” Phys. Rev. D66, 122002 (2002), arXiv:gr-qc/0209039

  54. [62]

    Sensitivity functions of space- borne gravitational wave detectors for arbitrary time-delay interferometry combinations regarding non- tensorial polarizations,

    Pan-Pan Wang, Yu-Jie Tan, Wei-Liang Qian, and Cheng-Gang Shao, “Sensitivity functions of space- borne gravitational wave detectors for arbitrary time-delay interferometry combinations regarding non- tensorial polarizations,” Phys. Rev. D104, 023002 (2021)

  55. [63]

    Populations of double white dwarfs in Milky Way satellites and their detectability with LISA,

    V. Korolet al., “Populations of double white dwarfs in Milky Way satellites and their detectability with LISA,” Astron. Astrophys.638, A153 (2020), arXiv:2002.10462 [astro-ph.GA]

  56. [64]

    Observationally driven Galactic double white dwarf population for LISA,

    Valeriya Korol, Na’ama Hallakoun, Silvia Toonen, and Nikolaos Karnesis, “Observationally driven Galactic double white dwarf population for LISA,” Mon. Not. Roy. Astron. Soc.511, 5936–5947 (2022), arXiv:2109.10972 [astro-ph.HE]

  57. [65]

    Character- ization of the stochastic signal originating from compact binary populations as measured by LISA,

    Nikolaos Karnesis, Stanislav Babak, Mauro Pieroni, Neil Cornish, and Tyson Littenberg, “Character- ization of the stochastic signal originating from compact binary populations as measured by LISA,” Phys. Rev. D104, 043019 (2021), arXiv:2103.14598 [astro-ph.IM]

  58. [66]

    Confusion noise from Galactic binaries for Taiji,

    Chang Liu, Wen-Hong Ruan, and Zong-Kuan Guo, “Confusion noise from Galactic binaries for Taiji,” Phys. Rev. D107, 064021 (2023), arXiv:2301.02821 [astro-ph.IM]

  59. [67]

    Prospects for Taiji to detect a gravitational-wave background from cosmic strings,

    Zu-Cheng Chen, Qing-Guo Huang, Chang Liu, Lang Liu, Xiao-Jin Liu, You Wu, Yu-Mei Wu, Zhu Yi, and Zhi-Qiang You, “Prospects for Taiji to detect a gravitational-wave background from cosmic strings,” JCAP03, 022 (2024), arXiv:2310.00411 [astro-ph.IM]

  60. [68]

    Detecting a gravitational wave background from inflation with null energy condition violation: prospects for Taiji,

    Zu-Cheng Chen and Lang Liu, “Detecting a gravitational wave background from inflation with null energy condition violation: prospects for Taiji,” Eur. Phys. J. C84, 1176 (2024), arXiv:2404.08375 [gr-qc]

  61. [69]

    Stochastic Gravitational-wave Background from Binary Black Holes and Binary Neutron Stars and Implications for LISA,

    Zu-Cheng Chen, Fan Huang, and Qing-Guo Huang, “Stochastic Gravitational-wave Background from Binary Black Holes and Binary Neutron Stars and Implications for LISA,” Astrophys. J.871, 97 (2019), arXiv:1809.10360 [gr-qc]

  62. [70]

    Reconstructing the spectral shape of a stochastic gravitational wave background with LISA,

    Chiara Caprini, Daniel G. Figueroa, Raphael Flauger, Germano Nardini, Marco Peloso, Mauro Pieroni, Angelo Ricciardone, and Gianmassimo Tasinato, “Reconstructing the spectral shape of a stochastic gravitational wave background with LISA,” JCAP11, 017 (2019), arXiv:1906.09244 [a...

  63. [71]

    Improved reconstruction of a stochastic gravitational wave background with LISA,

    Raphael Flauger, Nikolaos Karnesis, Germano Nardini, Mauro Pieroni, Angelo Ricciardone, and Jes´ us Torrado, “Improved reconstruction of a stochastic gravitational wave background with LISA,” JCAP 01, 059 (2021), arXiv:2009.11845 [astro-ph.CO]

  64. [72]

    The effect of mission duration on LISA science objectives,

    Pau Amaro Seoaneet al., “The effect of mission duration on LISA science objectives,” Gen. Rel. Grav. 54, 3 (2022), arXiv:2107.09665 [astro-ph.IM]. 23

  65. [73]

    Alternative LISA-TAIJI networks: Detectability of the isotropic stochastic gravitational wave background,

    Gang Wang and Wen-Biao Han, “Alternative LISA-TAIJI networks: Detectability of the isotropic stochastic gravitational wave background,” Phys. Rev. D104, 104015 (2021), arXiv:2108.11151 [gr-qc]

  66. [74]

    Fast likelihood-free reconstruction of gravitational wave backgrounds,

    Androniki Dimitriou, Daniel G. Figueroa, and Bryan Zaldivar, “Fast likelihood-free reconstruction of gravitational wave backgrounds,” JCAP09, 032 (2024), arXiv:2309.08430 [astro-ph.CO]

  67. [75]

    The NANOGrav 15 yr Data Set: Evidence for a Gravitational- wave Background,

    Gabriella Agazieet al.(NANOGrav), “The NANOGrav 15 yr Data Set: Evidence for a Gravitational- wave Background,” Astrophys. J. Lett.951, L8 (2023), arXiv:2306.16213 [astro-ph.HE]

  68. [76]

    The second data release from the European Pulsar Timing Array - III. Search for gravitational wave signals,

    J. Antoniadiset al.(EPTA, InPTA:), “The second data release from the European Pulsar Timing Array - III. Search for gravitational wave signals,” Astron. Astrophys.678, A50 (2023), arXiv:2306.16214 [astro-ph.HE]

  69. [77]

    Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source,

    John Ellis, Marek Lewicki, and Jos´ e Miguel No, “Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source,” JCAP07, 050 (2020), arXiv:2003.07360 [hep-ph]

  70. [78]

    Towards Robust Gravitational Wave Detection with Pulsar Timing Arrays,

    Neil J. Cornish and Laura Sampson, “Towards Robust Gravitational Wave Detection with Pulsar Timing Arrays,” Phys. Rev. D93, 104047 (2016), arXiv:1512.06829 [gr-qc]

  71. [79]

    Gravitational waves from vacuum first order phase transitions II: from thin to thick walls,

    Daniel Cutting, Elba Granados Escartin, Mark Hindmarsh, and David J. Weir, “Gravitational waves from vacuum first order phase transitions II: from thin to thick walls,” Phys. Rev. D103, 023531 (2021), arXiv:2005.13537 [astro-ph.CO]

  72. [80]

    Impact of the noise knowledge uncertainty for the science exploitation of cosmological and astrophysical stochastic gravitational wave background with LISA,

    Martina Muratore, Jonathan Gair, and Lorenzo Speri, “Impact of the noise knowledge uncertainty for the science exploitation of cosmological and astrophysical stochastic gravitational wave background with LISA,” Phys. Rev. D109, 042001 (2024), arXiv:2308.01056 [gr-qc]

  73. [81]

    Measuring Parity Violation in the Stochastic Gravitational Wave Background with the LISA-Taiji network,

    Giorgio Orlando, Mauro Pieroni, and Angelo Ricciardone, “Measuring Parity Violation in the Stochastic Gravitational Wave Background with the LISA-Taiji network,” JCAP03, 069 (2021), arXiv:2011.07059 [astro-ph.CO]

  74. [82]

    Science with the TianQin Observatory: Preliminary results on stochastic gravitational-wave background,

    Zheng-Cheng Liang, Yi-Ming Hu, Yun Jiang, Jun Cheng, Jian-dong Zhang, and Jianwei Mei, “Science with the TianQin Observatory: Preliminary results on stochastic gravitational-wave background,” Phys. Rev. D105, 022001 (2022), arXiv:2107.08643 [astro-ph.CO]. 24

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