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Gravitational Baryogenesis
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We show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in an expanding universe and, combined with baryon-number-violating interactions, can drive the universe towards an equilibrium baryon asymmetry that is observationally acceptable.
Forward citations
Cited by 12 Pith papers
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Gravitational baryogenesis beyond the spectator approximation
Treating the baryogenesis operator as part of the action yields modified Friedmann and Raychaudhuri equations with an effective Planck mass M_eff² = M_Pl² - 2λ ∇_μ J^μ for the vector-density realization of the current.
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Scalar induced gravitational waves as probes of dark QCD
A dark QCD crossover around 5.5 times the SM QCD scale imprints a frequency-shifted distortion on scalar induced gravitational wave spectra computed from rescaled effective degrees of freedom.
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Gravitational Baryogenesis in $f(R)$ Cosmologies
Gravitational baryogenesis in Starobinsky and Odintsov–Oikonomou f(R) inflation yields η≈(1.05–1.53)×10⁻¹¹ at M*=M_Pl, matching the observed 8.65×10⁻¹¹ only for M*≈0.4 M_Pl.
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Baryon asymmetry from higher-order matter contributions in gravity
A T^2-dependent coupling between the derivative of T_mu nu T^mu nu and the baryon current can generate the observed baryon asymmetry in GR and f(R,T^2) gravity, at the cost of fitted parameters.
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Dark CP Violation and Gauged Lepton/Baryon Number for Electroweak Baryogenesis
An electroweak baryogenesis model where dark-sector CP violation is transferred to Standard Model leptons through an anomalous U(1)_ℓ Z' background can produce the observed baryon asymmetry while evading current EDM bounds.
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Electroweak Baryogenesis: Advances in Sphaleron Rate Calculations and Implications of Thermal Phase Transitions
Sphaleron rates can be computed gauge-invariantly in 3D thermal EFT, yielding a new baryon-washout criterion x = lambda3/g3^2 that replaces v_c/T_c > 1 for electroweak baryogenesis.
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Constraints on R\'{e}nyi Entropy through Primordial Big-Bang Nucleosynthesis and Baryogenesis
Rényi entropy cosmology constrained by BBN: helium and deuterium allow overlapping λ ranges near 10^-85, lithium requires disjoint values, so the constant-λ model cannot solve the lithium problem.
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Consequences of non-minimal coupling for mass mixing in spontaneous baryogenesis
A non-minimal coupling between the inflaton and spacetime curvature is shown to enhance spontaneous baryogenesis by increasing the effective inflaton mass, yielding a new correction to the baryon asymmetry formula.
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Gravitational Baryogenesis in Rainbow Gauss-Bonnet gravity
Gravitational baryogenesis in a rainbow-gravity-corrected 4D Gauss-Bonnet model can in principle produce Y_B ~ 10^-10 during radiation domination, but only by fitting seven free parameters and using the effective theo...
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Impact of a complex scalar spectator field on baryon asymmetry within spontaneous baryogenesis
A spectator scalar field coupled to the inflaton and to spacetime curvature yields a first-order correction to the baryon asymmetry in spontaneous baryogenesis, potentially enhancing it by orders of magnitude for smal...
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Flipped Rotating Axion Non-minimally Coupled to Gravity: Baryogenesis and Dark Matter
A rotating axion, kicked into motion by a sign flip in its gravitational effective potential during kination, can co-generate baryon asymmetry and dark matter in a Majoron seesaw model.
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Asymmetries from a charged memory-burdened PBH
A parameter-space scan shows that very large curvature-current couplings can fit the baryon asymmetry and dark matter abundance, while the electric charge of the black hole plays no role in the mechanism.
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