DM-Shapiro timing cross-correlations self-calibrate electron bias b_e, recovering sigma(f_NL) within 1.0-1.9 of fixed-bias performance after marginalization.
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Cosmology and fundamental physics with the Euclid satellite
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Introduces HICOBIAN, a differentiable fuzzy hierarchical cosmic-web bias model using sigmoid gradients for smooth region transitions, enabling accurate Bayesian field-level reconstruction of primordial density fields validated by Fourier-space statistics.
Cosmic variance is modeled as Eulerian bias parameters of a finite-volume realization relative to the ensemble average, disentangling it from galaxy bias in the nonlinear BAO shift.
Kinetic Sunyaev-Zel'dovich reconstruction from WISExSuperCOSMOS and unWISE galaxies with Planck data yields tight upper limits on bulk velocities consistent with LambdaCDM out to 2000 h^{-1} Mpc while showing tension with a quasar dipole interpretation.
The f(Q, L_m) gravity model fits observational data from BBN to late-time acceleration, acting as a viable quintessence-like alternative to the standard LambdaCDM model.
Generation of 100 full-sky quasar spectrophotometric mock catalogs using a hierarchical nonlocal nonlinear bias scheme on Augmented Lagrangian Perturbation Theory lightcone fields, calibrated to DESI data and including Quaia observational effects.
In Hu-Sawicki f(R) gravity the redshift-space bispectrum monopole and quadrupole show 2-8% deviations from GR at z=0.7 and k~0.3 h/Mpc with forecasted SNR of 30 and 15 for Euclid.
Phenomenological extension of the PNJL model introduces a curvature-sensitive term proportional to (H/H0)^d that behaves as effective dark energy at late times and fits low-redshift data competitively with ΛCDM.
Gaia quasar proper motions show a significant quadrupole signal matching an axisymmetric Bianchi I anisotropy model, but the amplitude does not increase with redshift as the model requires and the inferred local shear exceeds expectations.
Rényi entropic corrections to cosmology are constrained by DESI DR2 BAO and GW data to a viable quintessence-like model that approaches ΛCDM without phantom behavior and satisfies BBN bounds.
A single ultra-light scalar field with trace coupling to matter is claimed to generate a Yukawa fifth force and mass modulation that explain flat rotation curves and the observed cosmological constant without dark sectors.
Bulk viscous fluid models for dark energy yield improved fits to supernova, BAO, and CMB data over LambdaCDM, especially in the interacting non-minimal case.
In Gauss-Bonnet inflation with monomial potential and coupling, gravitational waves from preheating produce a present-day energy density spectrum consistent with Planck constraints when the coupling strength, equation of state, and efficiency are set to specific values.
Presents the science case, reference design, and project plan for the CMB-S4 ground-based CMB experiment.
The CosmoVerse White Paper compiles observational tensions in cosmology and maps strategies using improved systematics checks and tests of fundamental physics to resolve them.
Particle cosmology integrates particle physics with cosmology to interpret the early universe as a natural high-energy laboratory and explain phenomena via theories like inflation, baryogenesis, and dark matter.
citing papers explorer
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Fast Radio Burst Dispersion Measure--Timing Cross-Correlations: Bias Self-Calibration and Primordial Non-Gaussianity Constraints
DM-Shapiro timing cross-correlations self-calibrate electron bias b_e, recovering sigma(f_NL) within 1.0-1.9 of fixed-bias performance after marginalization.
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Differentiable Fuzzy Cosmic-Web for Field Level Inference
Introduces HICOBIAN, a differentiable fuzzy hierarchical cosmic-web bias model using sigmoid gradients for smooth region transitions, enabling accurate Bayesian field-level reconstruction of primordial density fields validated by Fourier-space statistics.
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Cosmic variance or galaxy bias? Disentangling finite-volume and galaxy formation effects in cosmological analysis
Cosmic variance is modeled as Eulerian bias parameters of a finite-volume realization relative to the ensemble average, disentangling it from galaxy bias in the nonlinear BAO shift.
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Measuring cosmic bulk flow with kinetic Sunyaev-Zel'dovich velocity reconstruction
Kinetic Sunyaev-Zel'dovich reconstruction from WISExSuperCOSMOS and unWISE galaxies with Planck data yields tight upper limits on bulk velocities consistent with LambdaCDM out to 2000 h^{-1} Mpc while showing tension with a quasar dipole interpretation.
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From Big Bang Nucleosynthesis to Late-Time Acceleration in $f(Q,L_m)$ Gravity
The f(Q, L_m) gravity model fits observational data from BBN to late-time acceleration, acting as a viable quintessence-like alternative to the standard LambdaCDM model.
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Fast and accurate Gaia-unWISE quasar mock catalogs from LPT and Eulerian bias
Generation of 100 full-sky quasar spectrophotometric mock catalogs using a hierarchical nonlocal nonlinear bias scheme on Augmented Lagrangian Perturbation Theory lightcone fields, calibrated to DESI data and including Quaia observational effects.
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Tracing Signatures of Modified Gravity in Redshift-Space Galaxy Bispectrum Multipoles: Prospects for Euclid
In Hu-Sawicki f(R) gravity the redshift-space bispectrum monopole and quadrupole show 2-8% deviations from GR at z=0.7 and k~0.3 h/Mpc with forecasted SNR of 30 and 15 for Euclid.
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Late-Time Cosmic Acceleration from QCD Confinement Dynamics
Phenomenological extension of the PNJL model introduces a curvature-sensitive term proportional to (H/H0)^d that behaves as effective dark energy at late times and fits low-redshift data competitively with ΛCDM.
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Mapping the Universe as a Bianchi I cosmology with Gaia data
Gaia quasar proper motions show a significant quadrupole signal matching an axisymmetric Bianchi I anisotropy model, but the amplitude does not increase with redshift as the model requires and the inferred local shear exceeds expectations.
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Exploring Cosmic Evolution in R\'enyi Entropic Cosmology with Constraints from DESI DR2 BAO and GW Data
Rényi entropic corrections to cosmology are constrained by DESI DR2 BAO and GW data to a viable quintessence-like model that approaches ΛCDM without phantom behavior and satisfies BBN bounds.
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The Vacuum Displacement Principle: Theoretical Framework and Local Phenomenology
A single ultra-light scalar field with trace coupling to matter is claimed to generate a Yukawa fifth force and mass modulation that explain flat rotation curves and the observed cosmological constant without dark sectors.
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Dissipative Cosmology and the Nature of Dark Energy: Insights from Bulk Viscosity with DESI DR2 observations
Bulk viscous fluid models for dark energy yield improved fits to supernova, BAO, and CMB data over LambdaCDM, especially in the interacting non-minimal case.
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Gravitational waves production during preheating within GB gravity with monomial coupling
In Gauss-Bonnet inflation with monomial potential and coupling, gravitational waves from preheating produce a present-day energy density spectrum consistent with Planck constraints when the coupling strength, equation of state, and efficiency are set to specific values.
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CMB-S4 Science Case, Reference Design, and Project Plan
Presents the science case, reference design, and project plan for the CMB-S4 ground-based CMB experiment.
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The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
The CosmoVerse White Paper compiles observational tensions in cosmology and maps strategies using improved systematics checks and tests of fundamental physics to resolve them.
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Particle Cosmology
Particle cosmology integrates particle physics with cosmology to interpret the early universe as a natural high-energy laboratory and explain phenomena via theories like inflation, baryogenesis, and dark matter.