339 citations · 4.5k across the 182 of their papers we have counts for
183 papers
Gravitational-Wave Modulation of Atomic Spontaneous Emission: Electrodynamical Theory, Quadrupolar Redistribution, and Rydberg Cavity Metrology
Sohrab Rahvar
Studying Gravitational Waves (GWs) provide a unique probe of the interplay between quantum matter and the dynamics of spacetime. We develop a QED framework for spontaneous emission…
Frequency shift in gravitational lensing by Kerr metric
Samaneh Sarbaz, Sohrab Rahvar
In this study, we calculate the relative frequency shift () caused by gravitational lensing resulting from the transverse motion of a spinning lens described by the Kerr met…
Size, shape, density, and atmospheric limit of (50000) Quaoar revealed from 14 years of stellar occultation
Giuliano Margoti, Felipe Braga-Ribas, José Luis Ortiz +173
We present results from 28 stellar occultations by the large Trans-Neptunian Object (50000) Quaoar registered between 2018 and 2025. By performing a joint analysis of this occultat…
Cosmological Tensions in a Gauge-Invariant Modified Gravity
Zahra Tabatabaei, Sohrab Rahvar, Shahin Rouhani
In this work, we investigate a gauge-invariant formulation of modified gravity (GIMOG) wherein the gravitational interaction emerges dynamically from a scalar field following a fir…
Exciting the Vacuum: Non-Thermal Particle Bursts and Multi-Messenger Signals from Binary Black Holes
Sohrab Rahvar
We investigate particle production in the dynamical curved spacetime of a binary black hole system. Particle production is a well-known feature of quantum field theory in curved sp…
Gravitational Scattering of Oort Cloud Objects by Dark Matter: Constraints on the Primordial Black Hole Fraction
Sohrab Rahvar
Planetary systems can act as long-term gravitational detectors for dark matter. We investigate the gravitational scattering of Oort cloud objects by primordial black holes (PBHs) u…