156 citations · 1.1k across the 74 of their papers we have counts for
5 papers · 1 filter
Particle creation rate for dynamical black holes
Javad T. Firouzjaee, George F R Ellis
We present the particle creation probability rate around a general black hole as an outcome of quantum fluctuations. Using the uncertainty principle for these fluctuation, we deriv…
Long gradient mode and large-scale structure observables I: linear order
Alireza Allahyari, Javad T. Firouzjaee
We study the effect of long gradient modes on large scale observables. When defined correctly, genuine observables should not only be gauge invariant but also devoid of any gauge a…
Relativistic virial relation for cosmological structures
Reza Javadinezhad, Javad T. Firouzjaee, Reza Mansouri
Starting with the relativistic Boltzmann equation for a system of particles defined by a distribution function, we have derived the virial relation for a spherical structure within…
Cosmological black holes: the spherical perfect fluid collapse with pressure in a FRW background
Rahim Moradi, Javad T. Firouzjaee, Reza Mansouri
We have constructed a spherically symmetric structure model in a cosmological background filled with perfect fluid with non-vanishing pressure as an exact solution of Einstein equa…
Particle creation from the quantum stress tensor
Javad T. Firouzjaee, George F. R. Ellis
Among the different methods to derive particle creation, finding the quantum stress tensor expectation value gives a covariant quantity which can be used for examining the back-rea…