18 citations · 72 across the 15 of their papers we have counts for
14 papers · 1 filter
On the Emergence of the Hysteresis Effect in Gravitational Systems
Raihaneh Moti, Ali Shojai
Previously, it was shown that the interplay between the gravitational memory effect and the thermodynamics of an ensemble of spinning objects gives rise to a hysteresis effect, whi…
On the Dynamics of Extended Bodies and the GravoThermo Memory Effect
Raihaneh Moti, Ali Shojai
The non-linearity of the theory of gravity induces a hysteresis effect in both the systems interacting with gravity and in the gravitational field. The effect is usually referred t…
On the Gravitational Hysteresis in the Kinetic Theory
Raihaneh Moti, Ali Shojai
General theory of relativity is non--linear in nature and therefore can result in hysteresis-like effects and cause systems to remember the footprint of the gravitational field. He…
On the Nonlocal Newtonian Cosmology
Raihaneh Moti
In the absence of an exact development of the cosmological models based on the Mashhoon nonlocal gravity, the Newtonian regime clarifies some aspects of it. To improve this model m…
On the Gravitational Precession Memory Effect for an Ensemble of Gyroscopes
Raihaneh Moti, Ali Shojai
We study the thermodynamic properties of a freely falling ensemble of gyroscopes after the passage of a weak gravitational wave. Due to the precession memory effect, the thermodyna…
On the quantum gravastar
Raihaneh Moti, Ali Shojai
In this paper, we show that it is possible to have pure quantum gravastar solution to the quantum improved Einstein equations. Such an object is essentially a gravastar in which th…
On the Quantum Improved Affine Gravity
Raihaneh Moti, Ali Shojai
Improvement of the classical gravity with the running gravitational coupling obtained from asymptotically safe gravity, is a good way of considering the effects of quantum gravity.…
Traversability of quantum improved wormhole solution
R. Moti, A. Shojai
We have investigated the problem of traversability of wormholes in the framework of quantum improvement of gravity theory arising from functional renormalization group methods to d…
Geodesic congruences in quantum improved spacetimes
R. Moti, A. Shojai
We investigate the geodesic deviation equation in the context of quantum improved spacetimes. The improved Raychaudhuri equation is derived, and it is shown that the classical stro…
On the cutoff identification and the quantum improvement in asymptotically safe gravity
R. Moti, A. Shojai
Applying the exact renormalization group method to search the nonGaussian fixed points of gravitational coupling, is frequently followed by two steps: cutoff identification and imp…
Observational assessment of the viability of de Sitter-Gödel-de Sitter phase transition
Sh. Khodabakhshi, M. Farhang, A. Shojai +2
de Sitter--Gödel--de Sitter phase transition(dGd) is a possible geometrical phase transition in the very early universe. It induces fluctuations with possibly observable traces on…
On the quantum improved Schwarzschild black hole
R. Moti, A. Shojai
Deriving the gravitational effective action directly from exact renormalization group is very complicated, if not impossible. Hence, to study the effects of running gravitational c…
On the effect of renormalization group improvement on the cosmological power spectrum
R. Moti, A. Shojai
Asymptotically safe quantum gravity predicts running gravitational and cosmological constants, while it remains a meaningful quantum field theory because of the existence of non-Ga…
Tracker coupled quintessence
F. Shojai, R. Moti, F. Najdat
In this paper two tracker solutions for conformally coupled quintessence model is obtained. The first solution is determined by dividing the evolution of the universe to matter and…