Solar tachocline production of symmetrons yields a keV-scale flux at Earth whose absorption in xenon detectors provides new complementary bounds on symmetron parameter space.
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Einstein-scalar cosmological systems admit a compact global attractor with late-time dynamics governed by at most two degrees of freedom under regularity assumptions on the potential.
Quintessence potential decreases monotonically with redshift while kinetic energy crosses zero near z=1, with negative values at intermediate redshifts being statistical artifacts from derivative reconstruction.
Coupled SUGRA quintessence is preferred by current data at >4σ over the uncoupled case, with sign-changing interaction producing phantom-crossing behavior statistically similar to the CPL parametrization.
A barotropic fluid with ω_s ≈ 0.29 and Ω_s ≈ 1.5×10^{-5} raises the inferred H0 to match SH0ES while remaining consistent with Planck CMB, DESI BAO, and Pantheon data.
The paper analyzes total gravitational energy and its flux in asymptotic regions of radiative spacetimes to provide a theoretical basis for assessing gravitational radiation's contribution to cosmological acceleration.
citing papers explorer
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Probing Solar Symmetrons with Direct Detection
Solar tachocline production of symmetrons yields a keV-scale flux at Earth whose absorption in xenon detectors provides new complementary bounds on symmetron parameter space.
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Global Dynamical Structure of Einstein$-$Scalar Cosmological Systems
Einstein-scalar cosmological systems admit a compact global attractor with late-time dynamics governed by at most two degrees of freedom under regularity assumptions on the potential.
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Model-Independent Reconstruction of Quintessence Potential and Kinetic Energy from DESI DR2 and Pantheon+ Supernovae
Quintessence potential decreases monotonically with redshift while kinetic energy crosses zero near z=1, with negative values at intermediate redshifts being statistical artifacts from derivative reconstruction.
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Coupled quintessence with a potential from supergravity exhibits sign-changing interaction
Coupled SUGRA quintessence is preferred by current data at >4σ over the uncoupled case, with sign-changing interaction producing phantom-crossing behavior statistically similar to the CPL parametrization.
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A barotropic alternative to Early Dark Energy for alleviating the $H_0$ tension
A barotropic fluid with ω_s ≈ 0.29 and Ω_s ≈ 1.5×10^{-5} raises the inferred H0 to match SH0ES while remaining consistent with Planck CMB, DESI BAO, and Pantheon data.
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The Role of Gravitational Energy Flux in Cosmic Acceleration
The paper analyzes total gravitational energy and its flux in asymptotic regions of radiative spacetimes to provide a theoretical basis for assessing gravitational radiation's contribution to cosmological acceleration.