31 citations · 124 across the 10 of their papers we have counts for
10 papers
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…
Can spacetime fluctuations generate entanglement between co-moving accelerated detectors?
Dipankar Barman, Bibhas Ranjan Majhi
Recent studies [Class. Quant. Grav. 42, 03LT01 (2025); Phys. Rev. D 111, 045023 (2025)] indicate that in a nested sequence of Rindler wedges, vacuum of former Rindler frame appears…
Mirror-enhanced acceleration-induced geometric phase
Dipankar Barman, Debasish Ghosh, Bibhas Ranjan Majhi
Fulling-Davies-Unruh effect contains great amount of theoretical importance in various branches of physics. Requirement of very high acceleration hinders its experimental evidence.…
Are multiple reflecting boundaries capable of enhancing entanglement harvesting?
Dipankar Barman, Bibhas Ranjan Majhi
Quantum entanglement harvesting in the relativistic setup attracted a lot of attention in recent times. Acquiring more entanglement within two qubits may be very desirable to estab…
Field theory in Rindler frame and more on the correspondence with thermal field theory formalisms
Dipankar Barman, Bibhas Ranjan Majhi
Considering two accelerated observers with same acceleration in two timelike wedges of Rindler frame we calculate the Feynman-{\it like} propagators for a real scalar field in a th…
Spontaneous entanglement leakage of two static entangled Unruh-DeWitt detectors
Dipankar Barman, Angshuman Choudhury, Bhushan Kad +1
Two entangled two-level Unruh-DeWitt detectors, which are in rest, spontaneously loose entanglement when at least any one of them is not isolated from the environment quantum field…
Entanglement harvesting between two inertial Unruh-DeWitt detectors from non-vacuum quantum fluctuations
Dipankar Barman, Subhajit Barman, Bibhas Ranjan Majhi
Entanglement harvesting from the quantum field is a well-known fact that, in recent times, is being rigorously investigated further in flat and different curved backgrounds. The us…
Entanglement harvesting from conformal vacuums between two Unruh-DeWitt detectors moving along null paths
Subhajit Barman, Dipankar Barman, Bibhas Ranjan Majhi
It is well-known that the dimensional Schwarzschild and spatially flat FLRW spacetimes are conformally flat. This work examines entanglement harvesting from the conformal f…
Constructing an entangled Unruh Otto engine and its efficiency
Dipankar Barman, Bibhas Ranjan Majhi
Uniformly accelerated frame mimics a thermal bath whose temperature is proportional to the proper acceleration. Using this phenomenon we give a detailed construction of an Otto cyc…
Role of thermal field in entanglement harvesting between two accelerated Unruh-DeWitt detectors
Dipankar Barman, Subhajit Barman, Bibhas Ranjan Majhi
We investigate the effects of field temperature on the entanglement harvesting between two uniformly accelerated detectors. For their parallel motion, the thermal nature…