4 papers
Ergotropic Mpemba crossings in finite-dimensional quantum batteries
Triyas Sapui, Tanoy Kanti Konar, Aditi Sen De
The quantum Mpemba effect is a counterintuitive phenomenon in which a state initially farther from equilibrium relaxes more rapidly than one that starts nearer to equilibrium. In t…
Advancing Quantum Otto Engine Performance via Additional Magnetic Field and Effective Negative Temperature
Arghya Maity, Aditi Sen De
We formulate a protocol for a four-stroke quantum Otto engine that is capable of achieving superior performance when operating between two thermal reservoirs: one at a positive spi…
Quantum battery with non-Hermitian charging
Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju, Aditi Sen De
We propose a design of a quantum battery exploiting the non-Hermitian Hamiltonian as a charger. In particular, starting with the ground or the thermal state of the interacting (non…
Necessary condition for information transfer under simulated parity-time-symmetric evolution
Leela Ganesh Chandra Lakkaraju, Shiladitya Mal, Aditi Sen De
Parity-time (PT) symmetric quantum theory can broaden the scope of quantum dynamics beyond unitary evolution which may lead to numerous counter-intuitive phenomena, including singl…