384 citations · 4.2k across the 141 of their papers we have counts for
142 papers
Quantum speed limit time of a uniformly accelerated Unruh-DeWitt detector
Debasish Ghosh, Bibhas Ranjan Majhi
Within the open quantum system formalism, using the Markovian process, we investigate the {\it quantum speed limit time} (QSLT) of a uniformly accelerated Unruh-DeWitt detector, in…
Mach's principle in atomic transitions
Subhajit Barman, Bibhas Ranjan Majhi
We investigate the atomic transition probabilities in atom-mirror set-ups that are in circular motion. In one scenario, the atom is in circular motion inside a static cylindrical m…
Entropic route to Brown-York tensor: A unified framework for null and timelike hypersurfaces
Krishnakanta Bhattacharya, Bhera Ram, Bibhas Ranjan Majhi
Building on Padmanabhan's entropy functional, originally introduced to derive Einstein's equations and highlight the emergent nature of gravity, we demonstrate its robustness in a…
New-born strings are tensionless
Sudip Karan, Bibhas Ranjan Majhi
We report a physical origin of tensionless strings, obtained by formulating string dynamics in finite-lifetime settings for the first time. Departing from the conventional paradigm…
State-Selective Signatures of Quantum and Classical Gravitational Environments
Partha Nandi, Sankarshan Sahu, Bibhas Ranjan Majhi +1
A unified framework is developed for determining whether a gravitational-wave (GW) background behaves as a classical field or as a genuinely quantum environment. Unified here means…
Detector's response to coherent Rindler and Minkowski photons
Pradeep Kumar Kumawat, Dipankar Barman, Bibhas Ranjan Majhi
We observe that the transition probability in a static two-level quantum detector interacting with a coherent Rindler field mode differs from that of the Rindler detector interacti…