{"id":"61b7a723-3c48-4a90-81b1-0d837910b0a3","arxiv_id":"2607.07378","paper_version":1,"verdict":"CONDITIONAL","confidence":"MODERATE","novelty_score":4.0,"correctness_risk":"unknown","formal_verification":"none","parameter_count":6,"one_line_summary":"DFT+DMFT with a multi-orbital iterative perturbation theory solver shows that low-energy spectra and transport of SrVO3 are governed by a single quasiparticle weight Z, yielding reasonable experimental agreement insensitive to specific (U,J) parameters.","lead":"This paper computes the electronic spectra and electrical transport of the correlated metal SrVO3 using DFT+DMFT with a real-frequency impurity solver, finding that a single quasiparticle weight Z governs low-energy properties regardless of the specific interaction parameters. A smart generalist might read it to understand how approximate many-body methods can yield quantitative agreement with experiment at low computational cost, potentially guiding materials design for透明导电化","discovery_kind":"unclear","skeptic_critique":{"model":"glm-5.2","headline":"The absolute scale of all transport results is set by a fitted σ0, making the 'quantitative agreement' claim circular in magnitude; the genuinely predictive content is limited to line shapes and T-dependence.","rationale":"The reader's CONDITIONAL verdict is appropriate. The paper makes a legitimate contribution: the iso-Z universality observation is useful (if somewhat close to a restatement of Fermi-liquid theory), the microscopic analysis of the 70 meV interband feature is well done, and the MO-IPT benchmark against CTQMC is reasonable. However, the 'quantitative' framing is overstated because σ0 fitting makes the absolute transport magnitudes non-predictive. The reader identified this issue but placed vertex corrections as the primary concern; I consider the σ0 fitting more directly load-bearing because it undermines the absolute-magnitude claim regardless of vertex corrections. The concrete test (f-sum rule determination of σ0) would settle whether the fitting is benign (just fixing units) or masks a real discrepancy. The paper's own acknowledgments of limitations (vertex corrections, Peierls approximation, frozen μ0, symmetric decoupling) are appropriate but unquantified. No code or data availability further limits independent verification. CONDITIONAL remains the right call: the spectral analysis and universality observation stand on their own merits, while the transport 'quantitative agreement' should be read as a fit with three parameters plus a line-shape comparison, not as a first-principles prediction.","tokens_in":27250,"tokens_out":4106,"duration_ms":208418,"concrete_test":"Compute σ0 from the f-sum rule ∫₀^∞ σ₁(Ω)dΩ = πne²/(2m*) using the DFT+DMFT spectral function, rather than fitting it to dc resistivity. If the sum-rule-determined σ0 yields absolute optical conductivity and dc resistivity within ~30% of experiment, the 'quantitative' claim is validated independently. If the sum-rule σ0 differs from the fitted 1.21 Ω⁻¹cm⁻¹ by an order of magnitude (as the comparison with e²/ℏa suggests), the fitting is masking a normalization or approximation error, and the absolute-magnitude agreement is artifactual.","verdict_should_be":"UNCHANGED","load_bearing_attack":"The central claim of 'quantitative' agreement with experiment for dc resistivity and optical conductivity rests on three fitted parameters: σ0, ρR, and θR (Sec. IIID, Eq. 28). Most critically, σ0 in Eq. 20 is described as 'a material-dependent constant that is obtained in this work through a comparison of theory with the experimental DC resistivity.' This parameter sets the absolute scale for ALL conductivity results—both dc and optical. Since ρ_e-e(T) = 1/σ_dc(T) = 1/(σ0 × F(T)), fitting σ0 to the experimental dc resistivity directly fixes the T² coefficient of the e-e contribution and the absolute magnitude of the optical conductivity. The resulting value σ0 = 1.21 Ω⁻¹cm⁻¹ is orders of magnitude below the fundamental Kubo prefactor (~e²/ℏa ≈ 10³–10⁴ Ω⁻¹cm⁻¹ for a = 3.84 Å), suggesting it absorbs unknown normalization or approximation factors rather than being a properly computed physical constant. Thus the 'quantitative agreement' in absolute magnitude is not a prediction but a consequence of fitting. The genuinely predictive content is: (1) the optical line shape (though with adjustable broadening η), (2) the T² scaling of the e-e term, and (3) the iso-Z universality. The reader correctly identified the σ0 issue but framed vertex corrections as the primary weakest assumption; I would invert this priority, since even with exact vertex corrections the absolute scale would remain fitted. The vertex correction concern is real but standard for DFT+DMFT optical calculations and less directly load-bearing for the headline claim.","agreement_with_reader":"partial"},"referee_report":{"model":"glm-5.2","summary":"This manuscript presents a DFT+DMFT study of SrVO$_3$ using the multi-orbital iterated perturbation theory (MO-IPT) impurity solver, examining single-particle spectra, dc resistivity, and optical conductivity. The central claims are: (i) the low-energy physics is governed by a single quasiparticle weight $Z$, such that different $(U,J)$ combinations yielding the same $Z$ produce nearly identical low-energy observables; (ii) the MO-IPT self-energy agrees well with CTQMC and ARPES; and (iii) the calculated dc resistivity and optical conductivity show quantitative agreement with experiment. The paper also provides a microscopic analysis of the 70 meV interband optical feature, attributing it to interorbital hybridization within the $t_{2g}$ manifold.","tokens_in":27474,"tokens_out":2680,"duration_ms":179642,"significance":"The iso-$Z$ universality claim is a genuinely interesting and falsifiable finding, supported by the systematic $(U,J)$ exploration in Figs. 1, 8, 9, and 12. The self-energy benchmark against CTQMC (Fig. 2) is performed without fitting parameters and provides a useful validation of MO-IPT for this material class. The real-frequency nature of MO-IPT, avoiding analytic continuation, is a practical advantage for low-temperature transport calculations. The microscopic decomposition of the 70 meV optical feature (Appendix B, Fig. 11) is a clean demonstration that interorbital hybridization is essential, independently corroborating Ref. [24].","major_comments":[{"comment":"§IIIC, Eq. (20) and §IIID: The overall conductivity scale $σ_0$ is explicitly fitted to the experimental dc resistivity. The paper states: '$σ_0$ is a material-dependent constant that is obtained in this work through a comparison of theory with the experimental DC resistivity.' Since $σ_0$ sets the absolute scale for both dc and optical conductivity (Eq. 20–21), the 'quantitative agreement' in absolute magnitude is not a prediction but a consequence of this fit. The resulting value $σ_0 = 1.21~Ω^{-1}$cm$^{-1}$ is orders of magnitude below the fundamental Kubo prefactor ($e^2/ℏa$ per unit cell volume, which is $~10^3$–$10^4~Ω^{-1}$cm$^{-1}$ for $a = 3.84$ Å), suggesting it absorbs unknown normalization or approximation factors. The genuinely predictive content of the transport results is limited to: (a) the $T^2$ scaling and relative $T$-dependence of the e-e contribution, (b) the optical","section":null},{"comment":"§IIID: The Bloch-Grüneisen temperature $θ_R$ was changed from 700 K to 800 K specifically because the former yielded an unphysical negative $σ_0$. This adjustment is not independently motivated (e.g., by comparison to Debye temperatures or DFPT phonon calculations) but appears to be driven by the need to avoid an unphysical fit result. The paper should either justify $θ_R = 800$ K from independent physical data or explicitly acknowledge that this parameter was tuned to produce a physically meaningful fit. This is load-bearing because the decomposition of resistivity into e-e and e-ph components (Fig. 3, lower inset) and the crossover temperature (~80 K) depend on the relative values of $ρ_R$ and $σ_0$, both of which are sensitive to $θ_R$.","section":null},{"comment":"Abstract and §IV (Conclusion): The claim of 'quantitative agreement' with experiment for dc resistivity and optical conductivity should be qualified. Given that $σ_0$, $ρ_R$, and $θ_R$ are all fitted (§IIID), and the broadening parameter $η$ is adjustable (Fig. 4), the transport agreement is better described as a phenomenological fit with physically motivated functional forms rather than an ab initio prediction. The abstract's 'reasonable agreement' is more appropriate than the conclusion's 'agree well with experiment' and 'quantitative description.' The authors should consistently distinguish between the genuinely predicted quantities (self-energy, iso-$Z$ universality, optical line shape position) and the fitted quantities (absolute conductivity scale, BG parameters).","section":null}],"minor_comments":[{"comment":"§IIB, Eq. (14): The symmetric decoupling approximation for two-particle correlators is introduced without discussion of its accuracy or range of validity. A brief comment on when this approximation is expected to break down would be helpful.","section":null},{"comment":"§IIA: The pseudo-chemical potential $μ_0$ is determined at $T=0$ and used at all finite temperatures. The paper acknowledges this 'ambiguity' but does not quantify the resulting error in filling at the highest temperatures considered (300 K).","section":null},{"comment":"§IIIE, Fig. 4: The broadening parameter $η$ is varied (0.001, 0.002 eV) and compared to experiment. The paper notes that $η$ 'effectively mimics the role of disorder-induced scattering,' but the physical justification for the chosen values is unclear. Since the interband peak width is sensitive to $η$, a more principled choice (e.g., from the residual resistivity or e-ph scattering rate) would strengthen the comparison.","section":null},{"comment":"§IIIC: The neglect of vertex corrections is standard but should be noted as a caveat in the abstract or conclusion, not only in the methods section, since it directly affects the transport claims.","section":null},{"comment":"Appendix B, Eq. (B2): The Peierls approximation neglects Berry-connection terms. The paper acknowledges this may be non-negligible for interband transitions near avoided crossings in the $t_{2g}$ manifold. A quantitative estimate of this effect, even if approximate, would be valuable.","section":null},{"comment":"Fig. 2: The experimental self-energies (Aizaki et al., Kobayashi et al.) were measured below 20 K, while the MO-IPT and CTQMC calculations are at $T = 116$ K. The temperature mismatch should be noted more prominently, as it could affect the comparison at finite $ω$.","section":null},{"comment":"§IIIB, title: 'expolaration' should be 'exploration.'","section":null},{"comment":"Fig. 3 caption: The lower inset decomposition shows e-e and e-ph contributions, but the crossover temperature (~80 K) is mentioned only in the text. Marking it on the figure would improve clarity.","section":null}],"recommendation":"major_revision","confidential_remarks":"The iso-Z universality result and the self-energy benchmark are the strongest parts of this paper and are publishable in principle. The transport claims, however, are undermined by the fitting of σ0 to the very quantity being compared. The skeptic's concern about circularity in the absolute magnitude is well-founded and should be addressed by reframing the transport results. The paper would benefit from explicitly separating 'predicted' from 'fitted' aspects throughout. If the authors can reframe the transport claims appropriately and justify the θR adjustment, the paper should be suitable for publication."},"author_rebuttal":{"model":"glm-5.2","summary":"We thank the referee for a careful and constructive report. The referee correctly identifies that the absolute conductivity scale σ₀, the Bloch-Grüneisen parameters (ρ_R, θ_R), and the broadening η are fitted rather than ab initio quantities, and that the language in the abstract and conclusion should be revised to distinguish genuinely predicted results from phenomenologically fitted ones. We accept all three major comments and will revise the manuscript accordingly. We also provide substantive responses clarifying the physical context of the σ₀ prefactor and the θ_R adjustment.","responses":[{"response":"The referee is correct that σ_0 is a fitted parameter and that the absolute magnitude of the conductivity is therefore not an ab initio prediction. We accept this point and will revise the manuscript to state this explicitly and unambiguously. We will add a discussion clarifying that the genuinely predictive content of the transport results consists of: (i) the T² scaling and relative T-dependence of the e-e contribution, (ii) the position and line shape of the optical interband feature, and (iii) the iso-Z universality of the low-energy response. We will also add a remark on the discrepancy between the fitted σ_0 = 1.21 Ω⁻¹cm⁻¹ and the fundamental Kubo prefactor (~10³–10⁴ Ω⁻¹cm⁻¹). We believe this discrepancy arises because σ_0 absorbs multiple approximation factors: the neglect of vertex corrections in the current-current bubble, the Peierls approximation for the velocity operator, the use of a limited t₂g Wannier window that omits O-2p and e_g contributions to the current operator, and the single-site DMFT approximation itself. We do not claim that σ_0 can be derived from first principles within the present framework, and we will make this clear in the revised text. The abstract and conclusion will be revised to replace 'quantitative agreement' with 'reasonable agreement' and to distinguish predicted quantities from fitted ones throughout.","revision_made":"yes","referee_comment":"§IIIC, Eq. (20) and §IIID: The overall conductivity scale σ_0 is explicitly fitted to the experimental dc resistivity. The paper states: 'σ_0 is a material-dependent constant that is obtained in this work through a comparison of theory with the experimental DC resistivity.' Since σ_0 sets the absolute scale for both dc and optical conductivity (Eq. 20–21), the 'quantitative agreement' in absolute magnitude is not a prediction but a consequence of this fit. The resulting value σ_0 = 1.21 Ω^{-1} cm^{-1} is orders of magnitude below the fundamental Kubo prefactor (e^2/ℏa per unit cell volume, which is ~10^3–10^4 Ω^{-1} cm^{-1} for a = 3.84 Å), suggesting it absorbs unknown normalization or approximation factors. The genuinely predictive content of the transport results is limited to: (a) the T^2 scaling and relative T-dependence of the e-e contribution, (b) the optical line shape position,"},{"response":"The referee is correct that the change from θ_R = 700 K to 800 K was motivated by the unphysical negative σ_0 obtained at 700 K, and that this adjustment is not independently justified from Debye temperatures or DFPT phonon calculations. We accept this criticism. In the revised manuscript, we will explicitly acknowledge that θ_R = 800 K was tuned to avoid an unphysical fit result rather than derived from independent phonon data. We note that the manuscript already states that θ_R ~ 700 K fits the first-principles DFPT e-ph calculations from Ref. [25] (Abramovitch et al.) quite well, and that the shift to 800 K represents a modest (~14%) adjustment. We will add a discussion of the sensitivity of the e-e/e-ph decomposition and the ~80 K crossover temperature to this parameter. We will also note that the Debye temperature of SrVO₃ is reported in the range ~350–400 K in the literature, and that the Bloch-Grüneisen transport temperature θ_R can differ from the Debye temperature due to the different weighting of phonon modes in transport. However, we acknowledge that a quantitative justification of θ_R = 800 K from independent data is not currently available, and we will state this limitation transparently.","revision_made":"yes","referee_comment":"§IIID: The Bloch-Grüneisen temperature θ_R was changed from 700 K to 800 K specifically because the former yielded an unphysical negative σ_0. This adjustment is not independently motivated (e.g., by comparison to Debye temperatures or DFPT phonon calculations) but appears to be driven by the need to avoid an unphysical fit result. The paper should either justify θ_R = 800 K from independent physical data or explicitly acknowledge that this parameter was tuned to produce a physically meaningful fit. This is load-bearing because the decomposition of resistivity into e-e and e-ph components (Fig. 3, lower inset) and the crossover temperature (~80 K) depend on the relative values of ρ_R and σ_0, both of which are sensitive to θ_R."},{"response":"We fully accept this point. The abstract already uses 'reasonable agreement,' which the referee acknowledges as appropriate. However, the conclusion uses stronger language ('agree well with experiment,' 'quantitative description') that is not warranted given the fitted parameters. We will revise the conclusion to use consistent, appropriately qualified language throughout. Specifically, we will: (1) replace 'agree well with experiment' with 'show reasonable agreement with experiment'; (2) replace 'quantitative description' with a more precise characterization that distinguishes the ab initio results (self-energy benchmark against CTQMC and ARPES, iso-Z universality, optical interband feature position and its microscopic origin in interorbital hybridization) from the phenomenological transport fit (σ_0, ρ_R, θ_R, η); and (3) add an explicit statement in both the abstract and conclusion listing which quantities are predicted and which are fitted. We agree that this distinction is essential for the reader to properly assess the content of the work.","revision_made":"yes","referee_comment":"Abstract and §IV (Conclusion): The claim of 'quantitative agreement' with experiment for dc resistivity and optical conductivity should be qualified. Given that σ_0, ρ_R, and θ_R are all fitted (§IIID), and the broadening parameter η is adjustable (Fig. 4), the transport agreement is better described as a phenomenological fit with physically motivated functional forms rather than an ab initio prediction. The abstract's 'reasonable agreement' is more appropriate than the conclusion's 'agree well with experiment' and 'quantitative description.' The authors should consistently distinguish between the genuinely predicted quantities (self-energy, iso-Z universality, optical line shape position) and the fitted quantities (absolute conductivity scale, BG parameters)."}],"tokens_in":27239,"tokens_out":1515,"duration_ms":122351,"standing_objections":[]},"desk_editor":{"model":"glm-5.2","letter":"The main thing to know: this paper's genuine contribution is the systematic demonstration that low-energy spectra and transport in SrVO3 are insensitive to (U,J) as long as the quasiparticle weight Z is held fixed. That part is solid and useful. The secondary claim of 'quantitative' agreement with experiment for dc resistivity and optical conductivity is weaker than advertised because the absolute scale of all conductivity results is set by a fitted parameter σ0, which is determined by matching to the experimental dc resistivity. So the magnitude is not predicted — it is calibrated. The stress-test note is right to flag this as the central issue, and I'd agree with it over the reader's framing, which put vertex corrections first. Even with exact vertex corrections, the absolute scale would remain fitted. The vertex correction concern is real but standard for DFT+DMFT optical calculations and less load-bearing for the headline claim than the σ0 issue. The paper does several things well. The MO-IPT self-energy benchmark against CTQMC (Fig. 2) is reasonable and the Fermi-liquid scaling analysis is internally consistent. The microscopic decomposition of the 70 meV interband optical feature — tracing it to off-diagonal hopping within the t2g manifold and verifying that suppressing those hoppings eliminates the feature (Fig. 11) — is a clean piece of analysis that independently confirms the mechanism proposed by Ahn et al. The iso-Z contour map and the demonstration that self-energy, dc resistivity, and optical line shape all collapse along a single Z contour are the strongest parts. The soft spots are real but mostly acknowledged by the authors. Three fitted parameters enter the transport comparison (σ0, ρR, θR), with θR adjusted from 700K to 800K to avoid an unphysical negative σ0. The broadening parameter η controls the sharpness of the interband feature. The Peierls approximation neglects Berry-connection terms that may matter near avoided crossings in the t2g manifold. The symmetric decoupling approximation for two-particle correlators in MO-IPT is ad hoc and its impact is unquantified. No code or data is publicly available. None of these are fatal — they are the expected limitations of an approximate solver within single-site DMFT. The word 'quantitative' in the title and abstract overstates what the transport comparison delivers. The genuinely predictive content is: (1) the optical line shape and its T-dependence, (2) the T² scaling of the e-e term, and (3) the iso-Z universality. The absolute magnitudes are fitted. This paper is for readers working on DFT+DMFT method development and on SrVO3 as a benchmark system. The universality observation and the interband-feature analysis have lasting value. The transport comparison is illustrative but not predictive in absolute terms. It deserves a serious referee who can push the authors to either drop 'quantitative' from the transport claims or clearly separate the predictive content from the fitted content.","headline":"The iso-Z universality observation is the real contribution; the 'quantitative' transport agreement is partly circular because the absolute conductivity scale is fitted to experiment.","tokens_in":28311,"tokens_out":690,"would_cite":true,"duration_ms":119690,"reading_group":"yes","serious_thinker":"yes","would_accept_peer_review":true},"rs_alignment":null,"lean_confirmation":null,"pith_extraction":{"msc":[],"pacs":[],"model":"glm-5.2","headline":"One number governs SrVO3: quasiparticle weight Z≈0.5 unifies spectra and transport","keywords":["SrVO3","DFT+DMFT","quasiparticle weight","optical conductivity","dc resistivity","MO-IPT","Fermi liquid","correlated metal"],"falsifier":"If vertex corrections to the optical conductivity in SrVO3 are large, the quantitative agreement with experiment could be coincidental rather than reflecting correct physics. Similarly, if different (U, J) pairs yielding the same Z were found to produce measurably different self-energies or transport properties at low energy, the Z-universality claim would fail.","tokens_in":27266,"feed_emoji":"🔑","tokens_out":1137,"duration_ms":115042,"temperature":0.7,"pith_summary":"This paper argues that the low-energy spectral and transport properties of the moderately correlated metal SrVO3 are governed by a single quasiparticle weight Z (approximately 0.5, corresponding to a mass doubling). The authors compute the electronic structure and transport using DFT combined with DMFT, employing a real-frequency multi-orbital iterative perturbation theory (MO-IPT) impurity solver that avoids the analytic continuation required by quantum Monte Carlo methods. They find that different choices of the Hubbard interaction U and Hund's coupling J, so long as they yield the same Z, produce nearly identical self-energies, dc resistivities, and optical conductivities at low energies. The computed dc resistivity and optical conductivity agree reasonably with experiment across the full temperature and frequency range when electron-phonon scattering is added phenomenologically. The paper also identifies the origin of a low-energy interband optical feature near 70 meV as arising from interorbital hybridization within the t2g manifold, not from Hubbard-band physics.","feed_headline":"Single quasiparticle weight Z≈0.5 governs all low-energy physics of SrVO3","feed_subtitle":"Different interaction parameters giving the same Z yield nearly identical spectra, dc resistivity, and optical conductivity, simplifying the","key_machinery":"The quasiparticle weight Z = [1 - dReΣ/dω|_ω=0]^{-1}, defined within a Fermi-liquid expansion of the local DMFT self-energy. The MO-IPT impurity solver provides real-frequency self-energies directly. The iso-Z contour in the (U, J) plane serves as the organizing framework for testing parameter insensitivity.","core_discovery":"The central discovery is that the quasiparticle weight Z acts as a universal low-energy parameter for SrVO3: different (U, J) pairs lying on the same iso-Z contour yield nearly identical self-energies, dc resistivities, and optical conductivities. The authors further find that rescaling frequency by Z collapses self-energies from different Z values onto a single curve, and that this universal scaling is a genuine correlation effect (absent near Z=1, emerging as Z approaches 0). The low-energy interband optical feature at ~70 meV is traced to off-diagonal hopping-induced band splitting within the t2g manifold.","pith_inferences":["If Z-universality holds for other moderately correlated metals with degenerate active spaces, it could reduce the parameter-fitting problem in DFT+DMFT to a single scalar constraint, making the framework more predictive for materials screening.","The finding that vertex corrections to optical conductivity appear non-dominant in SrVO3, if generalizable to other cubic perovskite correlated metals, would validate the bubble approximation for a broader class of materials.","The breakdown of Z-universality at high energies (where Hubbard-band positions remain U-sensitive) suggests a natural energy boundary below which Fermi-liquid universality applies and above which microscopic interaction parameters matter.","The interplay between the Z-collapse and the approach to strong coupling (Z→0) raises the question of whether a similar universality might emerge in more strongly correlated systems near Mott transitions."],"forward_implications":["For moderately correlated metals with high orbital symmetry like SrVO3, precise knowledge of U and J may be unnecessary for low-energy predictions if Z can be fixed from experiment (e.g., ARPES mass enhancement).","The Z-collapse of self-energies from different parameter sets suggests a form of universality in Fermi-liquid metals that could simplify material-specific calculations across the class of d1 perovskites.","The identification of the 70 meV optical feature as a band-structure effect (interorbital hybridization) rather than a many-body Hubbard-band feature clarifies the interpretation of low-energy optical spectra in correlated t2g metals.","The MO-IPT solver's ability to produce real-frequency self-energies at low temperatures without analytic continuation enables systematic parameter-space surveys that are computationally prohibitive with CTQMC."],"fun_headline_variants":["DFT+DMFT with fixed Z captures full spectra and transport of SrVO3","Single quasiparticle weight Z unifies dc and optical transport in SrVO3","Iso-Z contours yield nearly identical self-energies and conductivities in SrVO3","Frequency rescaling by Z collapses self-energies onto one curve in SrVO3","Weak k-dependent self-energy and negligible vertex corrections in SrVO3 transport"],"cache_read_input_tokens":0,"weakest_assumption_plain":"The paper assumes that vertex corrections to the optical conductivity are negligible, meaning the current-current bubble built from interacting Green's functions suffices. It also fits the overall conductivity scale to match experimental dc resistivity, so the absolute magnitude of optical conductivity is not independently predicted.","fun_headline_variants_meta":{"raw":{"variants":["DFT+DMFT with fixed Z captures full spectra and transport of SrVO3","Single quasiparticle weight Z unifies dc and optical transport in SrVO3","Iso-Z contours yield nearly identical self-energies and conductivities in SrVO3","Frequency rescaling by Z collapses self-energies onto one curve in SrVO3","Weak k-dependent self-energy and negligible vertex corrections in SrVO3 transport"]},"model":"glm-5.2","effort":"low","cost_usd":0.0,"raw_usage":{"total_tokens":728,"prompt_tokens":621,"completion_tokens":107,"prompt_tokens_details":null},"tokens_in":621,"tokens_out":107,"duration_ms":36080,"temperature":1.0,"reasoning_tokens":null,"cache_read_input_tokens":0,"cache_creation_input_tokens":0},"cache_creation_input_tokens":0},"created_at":"2026-07-09T12:39:37.302234+00:00","model_set":{"reader":"glm-5.2"},"falsifier":"If vertex corrections to the optical conductivity in SrVO3 are large, the quantitative agreement with experiment could be coincidental rather than reflecting correct physics. Similarly, if different (U, J) pairs yielding the same Z were found to produce measurably different self-energies or transport properties at low energy, the Z-universality claim would fail.","supporting_citations":[],"review_version":1}