Derives modified Einstein and fluid equations for non-minimal matter-Lagrangian-curvature couplings and demonstrates non-equivalence of Schutz and Brown fluid formulations.
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An f(T) model with m ≈ 0.91 and n ≈ 0.69, stable under dynamical analysis, reproduces the observed cosmic expansion when fitted to recent BAO, Hubble, and supernova datasets.
Maximum Caliber on graph spectral kernels yields self-consistent fixed-point solutions, log-linear Fisher-Rao geodesics, and spectral entropy signals for structural phase transitions.
Adiabatic regularization combined with smoothed transitions suppresses the high-frequency oscillations in the power spectrum of primary gravitational waves about a zero mean.
In a perturbatively analyzed relativistic self-gravitating equilibrium with steady flow, the entropy current takes the form (s - b j^0) u^μ / u^0 + b j^μ with b starting at quadratic order and fixed by current conservation.
Lecture notes that derive the nonlinear Einstein field equations from the gravitational action and apply them to black holes, cosmology, and gravitational waves at the advanced undergraduate level.
citing papers explorer
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Non-minimal fluid Lagrangian couplings
Derives modified Einstein and fluid equations for non-minimal matter-Lagrangian-curvature couplings and demonstrates non-equivalence of Schutz and Brown fluid formulations.
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Cosmological Parameters in $f(T)$ Gravity: Theoretical and Observational Analysis
An f(T) model with m ≈ 0.91 and n ≈ 0.69, stable under dynamical analysis, reproduces the observed cosmic expansion when fitted to recent BAO, Hubble, and supernova datasets.
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Spectral Kernel Dynamics via Maximum Caliber: Fixed Points, Geodesics, and Phase Transitions
Maximum Caliber on graph spectral kernels yields self-consistent fixed-point solutions, log-linear Fisher-Rao geodesics, and spectral entropy signals for structural phase transitions.
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Primary gravitational waves at high frequencies I: Origin of suppression in the power spectrum
Adiabatic regularization combined with smoothed transitions suppresses the high-frequency oscillations in the power spectrum of primary gravitational waves about a zero mean.
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Self-gravitating equilibrium with slow steady flow and its consistent form of entropy current
In a perturbatively analyzed relativistic self-gravitating equilibrium with steady flow, the entropy current takes the form (s - b j^0) u^μ / u^0 + b j^μ with b starting at quadratic order and fixed by current conservation.
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A short course in general relativity
Lecture notes that derive the nonlinear Einstein field equations from the gravitational action and apply them to black holes, cosmology, and gravitational waves at the advanced undergraduate level.