6 citations · 18 across the 10 of their papers we have counts for
11 papers · 1 filter
Generating Superposition of Transverse Ising Ground States by Quantum Interaction
Koushik Das, Sayan Mondal, Ujjwal Sen
We investigate superpositions of quantum Ising ground states generated through a quantum interaction, in which the nearest-neighbor coupling strength is promoted to an operator act…
Exchange Fluctuation Theorems for Non-Markovian Baths in Quantum Collisional Model
Sayan Mondal, Sukrut Mondkar, Ujjwal Sen
The quantum exchange fluctuation theorem relates the probabilities of observing heat transfer along and against the temperature gradient between thermal baths at different temperat…
Optimal work extraction in measurement-based quantum Otto engines: Non-adiabaticity and generalized measurements can be beneficial
Arunabha Das, Sayan Mondal, Debarupa Saha +1
Measurement-based quantum heat engines have attracted significant interest as alternatives to conventional thermal engines, as they replace the hot thermal reservoir with quantum m…
Resource-resolved quantum fluctuation theorems in end-point measurement scheme
Sukrut Mondkar, Sayan Mondal, Ujjwal Sen
Fluctuation theorems provide universal constraints on nonequilibrium energy and entropy fluctuations, making them a natural framework to assess how and to what extent quantum resou…
Mpemba effect in self-contained quantum refrigerators: Accelerated cooling
Sayan Mondal, Ujjwal Sen
We consider the qubit-qutrit model of self-contained quantum refrigerator and observe the quantum Mpemba effect in its cooling. In this system, the qutrit acts as the refrigerator…
Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
Keshav Das Agarwal, Sayan Mondal, Ayan Sahoo +3
Sensing of parameters is an important aspect in all disciplines, with applications ranging from fundamental science to medicine. Quantum sensing and metrology is an emerging field…
Path superposition activating perfect quantum teleportation ability for separable states
Sayan Mondal, Priya Ghosh, Ujjwal Sen
Quantum teleportation is a quintessential quantum communication protocol that enables the transmission of an arbitrary quantum state between two distant parties without physically…
Multicritical quantum sensors driven by symmetry-breaking
Sayan Mondal, Ayan Sahoo, Ujjwal Sen +1
Quantum criticality has been demonstrated as a useful quantum resource for parameter estimation. This includes second-order, topological and localization transitions. In all these…
Kerr-type nonlinear baths enhance cooling in quantum refrigerators
Tanaya Ray, Sayan Mondal, Aparajita Bhattacharyya +3
We study the self-contained three-qubit quantum refrigerator, with a three-body interaction enabling cooling of the target qubit, in presence of baths composed of anharmonic quantu…
Modified Landauer's principle: How much can the Maxwell's demon gain by using general system-environment quantum state?
Sayan Mondal, Aparajita Bhattacharyya, Ahana Ghoshal +1
The Landauer principle states that decrease in entropy of a system, inevitably leads to a dissipation of heat to the environment. This statement is usually established by consideri…
Estimating phase transition of perturbed J1-J2 Heisenberg quantum chain in mixtures of ground and first excited states
Sayan Mondal, George Biswas, Ahana Ghoshal +2
We show that the nearest neighbour entanglement in a mixture of ground and first excited states - a subjacent state - of the J1-J2 Heisenberg quantum spin chain can be used as an o…