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Axion Cosmology

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arxiv astro-ph/0610440 v2 pith:JJSPIOXJ submitted 2006-10-16 astro-ph hep-ph

Pierre Sikivie This is my paper · ORCID
classification astro-phhep-ph
keywords axionaxionscoldcosmologydomainevolutionfieldisocurvature
verification ladder T0 review T1 audit T2 compute T3 formal
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Outline: 1. Thermal axions 2. Axion field evolution 3. The domain wall problem 4. Cold axions 5. Axion miniclusters 6. Axion isocurvature perturbations

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Forward citations

Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Big Axions

    hep-ph 2026-06 unverdicted novelty 8.0 of 10

    Big axions are axion models from collective spontaneous breaking of a delocalized network of U(1) symmetries that realize high-quality accidental global symmetries, solve the strong CP problem, and may explain dark matter.

  2. Spin Polarization of Proca Stars Formed by Gravitational Bose--Einstein Condensation

    hep-ph 2026-07 unverdicted novelty 6.0 of 10

    Gravitationally condensed Proca stars exhibit partial spin polarization controlled by the elliptical polarization of the dominant component-space mode, with ensemble mean χ_net ≈ 0.62 and large realization-to-realizat...

  3. Probing Axion Dark Matter via the Chiral Magnetic Effect in Zero-Bias Weyl Semimetals

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Proposal to detect axion dark matter via chiral magnetic effect in Weyl semimetals, claiming observable femto-amp signals in 1 cm² samples at 10 T that can probe couplings below stellar cooling bounds.

  4. Probing Axion-Photon conversion via circular polarization imprints in the CMB $V$-mode observations

    astro-ph.CO 2025-10 unverdicted novelty 6.0 of 10

    Proposes that axion-photon conversion in pre-CMB helical magnetic fields imprints detectable V-mode polarization in the CMB, allowing CLASS 40 GHz observations to constrain ALP masses 10^{-10} to 10^{-8} eV and their ...

  5. Enhanced Axion-wind near Earth's Surface

    hep-ph 2025-02 accept novelty 6.0 of 10

    A quadratically coupled ultralight scalar field develops a spatial profile around Earth that can boost the field-gradient 'axion wind' by orders of magnitude at low masses, and a nonzero incoming velocity removes the ...

  6. Large-Scale Structure Probes of the Post-Inflationary Axiverse

    astro-ph.CO 2025-11 conditional novelty 5.0 of 10

    HST ultraviolet luminosity function data at z=4-10, combined with Lyman-α and CMB data, place leading constraints on subdominant post-inflationary axion dark matter via its white-noise isocurvature perturbations.

  7. Echoes in multi-ALP scenarios

    hep-ph 2025-07 conditional novelty 5.0 of 10

    In coherent multi-ALP models, axion echo power scales linearly with the number of ALPs, while incoherent (random-phase) models yield signals no stronger than the single-ALP case.

  8. QCD axion from broken scale symmetry

    hep-th 2026-05 unverdicted novelty 4.0 of 10

    Dilaton from broken scale symmetry meets all conditions for non-compact QCD axion cosmology including non-periodicity and timely domain-wall collapse.

  9. Probing axion-like particles through the gamma-ray production from cosmic-ray scattering in the Milky Way dark matter halo

    astro-ph.HE 2025-01 conditional novelty 4.0 of 10

    A sensitivity forecast shows H.E.S.S.-like, CTAO, and SWGO observations could strengthen ALP-photon coupling limits by about an order of magnitude over gamma-ray satellites and probe axion-electron couplings at lower masses.

  10. Tracing Ultra Light Axions in Post-reionization, Lyman-$\alpha$ and CMB Missions

    astro-ph.CO 2026-06 unverdicted novelty 3.0 of 10

    Fisher forecasts indicate joint post-reionization LSS cross-spectra and CMB-S4-like data can reach O(10^{-4}) uncertainty on ultra-light axion fraction for m_a ≲ 10^{-28} eV, with peak sensitivity near 10^{-25} eV.

  11. Flavor phenomenology of light dark particles

    hep-ph 2026-06 unverdicted novelty 2.0 of 10

    Review surveying limits and prospects for flavor-violating decays of light axion-like particles, highlighting complementarity of lab, astro, and cosmo probes up to 10^12 GeV scales.

  12. Axions as Dark Matter, Dark Energy, and Dark Radiation

    hep-ph 2025-09 unverdicted novelty 2.0 of 10

    A mini-review of axion phenomenology showing how light bosons can account for dark matter, drive cosmic acceleration, or contribute to relativistic backgrounds in the early and late Universe.

  13. The landscape of QCD axion models

    hep-ph 2020-03 unverdicted novelty 2.0 of 10

    Review classifies QCD axion models extending the standard mass-coupling window and updates bounds from cosmology, astrophysics, and experiments.

  14. Axion Searches at the CERN SPS: From Their Dawn to Current Prospects

    hep-ex 2025-07 unverdicted

    A review of axion and ALP searches at the CERN SPS, covering Barbiellini's 1982 proposal, the CHARM experiment, NA62/NA64 results, and future directions.

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