Black hole superradiance constrains the coupling strength in interacting dark energy-dark matter models through modifications to the effective mass of ultralight bosons in two scenarios.
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Develops a short-timescale injection formalism for post-recombination fluctuations, derives CMB impacts from scalar/vector/tensor perturbations, and constrains sequestered dark sector phase transitions to permille-level fractional energy injections.
Josephson junctions can detect ultralight boson potentials through induced phase shifts, enabling probes of photophilic scalars, Lorentz-violating scalars, and axion monopole-dipole interactions depending on source polarization.
Generalization of scalar-fermion Yukawa systems in constant-EOS cosmologies identifies scaling regime with constant energy density ratio from approximate scale invariance and asymptotic regime recovering bare mass.
Matter modeled as stochastic sources induces stochastic noise and new interactions in the large-scale EFT for light scalars, yielding corrections to the Klein-Gordon equation that can mimic dynamical dark energy or produce a cosmic Meissner effect under full screening.
Extended Proca-Nuevo gravity modifies the background expansion via a vector field algebraic constraint but leaves the matter growth equation identical to general relativity.
DESI DR2 BAO and full-shape data plus CMB yield ∑m_ν < 0.0642 eV (95% CL) under ΛCDM, in 3σ tension with oscillation lower limits, relaxed to <0.163 eV in w0waCDM.
citing papers explorer
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Constraining interacting dark energy models with black hole superradiance
Black hole superradiance constrains the coupling strength in interacting dark energy-dark matter models through modifications to the effective mass of ultralight bosons in two scenarios.
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Post-Recombination Fluctuations from a Sequestered Dark Sector
Develops a short-timescale injection formalism for post-recombination fluctuations, derives CMB impacts from scalar/vector/tensor perturbations, and constrains sequestered dark sector phase transitions to permille-level fractional energy injections.
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Matter influence on large-scale scalar dynamics
Matter modeled as stochastic sources induces stochastic noise and new interactions in the large-scale EFT for light scalars, yielding corrections to the Klein-Gordon equation that can mimic dynamical dark energy or produce a cosmic Meissner effect under full screening.
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Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape
DESI DR2 BAO and full-shape data plus CMB yield ∑m_ν < 0.0642 eV (95% CL) under ΛCDM, in 3σ tension with oscillation lower limits, relaxed to <0.163 eV in w0waCDM.