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gr-qc2025
Probing the quantum speed limit and entanglement in flavor oscillations of neutrino-antineutrino system in curved spacetime
Abhishek Kumar Jha, Mriganka Dutta, Mayank Pathak +2
We consider a spinning primordial black hole (PBH) described by the Kerr metric in Kerr-Schild polar coordinates. We derive an analytical expression for the four-vector gravitation…
astro-ph.HE2025
Disk-Outflow Symbiosis in GRMHD Simulations: Explaining Hard-State ULXs
Mayank Pathak, Banibrata Mukhopadhyay
Ultraluminous X-ray sources (ULXs) have captivated researchers for decades due to their exceptionally high luminosities and unique spectral characteristics. Some of these sources d…
astro-ph.HE2025
Simulating ULXs and blazars as GRMHD accretion flows around a black hole
Mayank Pathak, Banibrata Mukhopadhyay
General relativistic magnetohydrodynamic (GRMHD) simulations have been instrumental in our understanding of high energy astrophysical phenomena over the past two decades. Their rob…