5 papers
Who Writes the Gravitational Second Law of Thermodynamics?
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
We define gravitational entropy as the manifestly integrable surface charge associated with local transverse Lorentz boosts, entirely bypassing the conventional reliance on spaceti…
Dynamical Entropy Is a Noether Charge
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
Black hole thermodynamics for generic dynamical, non-equilibrium regimes remains a fundamental challenge. We establish dynamical entropy as the Noether charge associated with a gen…
Gravitational Entropy And The Second Law of Thermodynamics for Causal Observers
V. R. Shajiee, M. M. Sheikh-Jabbari, V. Taghiloo
It is well established that black holes possess entropy and behave as thermodynamic systems. Associating entropy with gravitational fields has not remained limited to black holes,…
Counting Black Hole Microstates at Future Null Infinity
Vahid Reza Shajiee
We propose a black hole microstate counting method based on the canonical quantization of the asymptotic symmetries of a two-dimensional dilaton-gravity system at future null infin…
Electroweak Phase Transition, Gravitational Waves and Dark Matter in Two Scalar Singlet Extension of The Standard Model
Vahid Reza Shajiee, Ali Tofighi
In this paper, the electroweak phase transition, the gravitational waves and the dark matter issues are investigated in two scalar singlet extension of the standard model. The dete…