In f(T) gravity with power-law and exponential models, a fiber inflation potential with ultra slow-roll phase amplifies the primordial curvature power spectrum on small scales to enable primordial black hole formation consistent with CMB constraints.
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A formulation of fluctuating hydrodynamics with spin is presented that achieves pseudo-gauge invariance and foliation covariance through torsion and second-order gravitational Ward identities.
The authors constrain power-law f(T) teleparallel gravity models via logarithmic and log-periodic deceleration parameter ansatzes fitted to cosmic chronometer and Pantheon datasets, finding departure from ΛCDM.
In f(T) gravity with Gong-Zhang EoS parametrization, the fitted model shows transient acceleration followed by future deceleration and satisfies thermodynamic consistency.
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Primordial black hole production in scalar field inflation within $f(T)$ gravity
In f(T) gravity with power-law and exponential models, a fiber inflation potential with ultra slow-roll phase amplifies the primordial curvature power spectrum on small scales to enable primordial black hole formation consistent with CMB constraints.
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Gaussian pseudogauge invariant hydrodynamics with spin
A formulation of fluctuating hydrodynamics with spin is presented that achieves pseudo-gauge invariance and foliation covariance through torsion and second-order gravitational Ward identities.
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Probing cosmic dynamics in $f(T)$ teleparallel gravity: Constraints from logarithmic and log-periodic deceleration ansatzes
The authors constrain power-law f(T) teleparallel gravity models via logarithmic and log-periodic deceleration parameter ansatzes fitted to cosmic chronometer and Pantheon datasets, finding departure from ΛCDM.
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Transiently accelerating cosmological model with Gong-Zhang parametrization in $f(T)$ teleparallel gravity
In f(T) gravity with Gong-Zhang EoS parametrization, the fitted model shows transient acceleration followed by future deceleration and satisfies thermodynamic consistency.