35 citations · 81 across the 8 of their papers we have counts for
9 papers
Memory--Transport Competition in Physical Two-Bath Quantum Reset Dynamics
Jishad Kumar, Achilleas Lazarides, Tapio Ala-Nissila
Coherence preservation and environmental renewal offer competing ways of controlling quantum memory and transport. We show that a seemingly natural protocol which exactly replaces…
Thermodynamics of Coherence-Selective Quantum Reset Protocols
Jishad Kumar, Achilleas Lazarides, Tapio Ala-Nissila
We develop an exact theory of coherence-selective stroboscopic resetting for quadratic open quantum systems within the single-particle density-matrix formalism. We focus on the sur…
Coherence-Controlled Quantum Zeno Dynamics from Exact Reset Maps
Jishad Kumar, Achilleas Lazarides, Tapio Ala-Nissila
We develop an exact framework for quantum Zeno and anti-Zeno dynamics in a broad class of open systems, whose microscopic Hamiltonians are quadratic in bosonic or fermionic operato…
Interaction-Enabled Hartree Fixed Points in Fermionic Resetting Dynamics
Jishad Kumar, Achilleas Lazarides, Tapio Ala-Nissila
In resetting dynamics, a system is repeatedly coupled to and decoupled from ancillary degrees of freedom that are reinitialized between interactions. This provides a versatile rout…
Quantum Dynamics of a Dissipative and Confined Cyclotron Motion
Jishad Kumar
We study the dissipative dynamics of a charged oscillator in a magnetic field by coupling (a la Caldeira and Leggett) it to a heat bath consisting of non-interacting harmonic oscil…
From Quantum Oscillators to Landau-Fock-Darwin model: A Statistical Thermodynamical Study
Jishad Kumar, Ebad Kamil
The aim of this tutorial is to analyze the equilibrium properties of some simple but widely used quantum systems. The canonical ensemble is used to evaluate the required properties…
Dissipative Quantum Systems and the Heat Capacity Enigma
S. Dattagupta, Jishad Kumar, S. Sinha +1
We present a detailed study of the quantum dissipative dynamics of a charged particle in a magnetic field. Our focus of attention is the effect of dissipation on the low- and high-…
Dissipative dynamics of a Harmonic Oscillator : A non-perturbative approach
Jishad Kumar, S. Sinha, P. A. Sreeram
Starting from a microscopic theory, we derive a master equation for a harmonic oscillator coupled to a bath of non-interacting oscillators. We follow a non-perturbative approach, p…
Low temperature Thermodynamics in the Context of Dissipative Diamagnetism
Jishad Kumar, P. A. Sreeram, Sushanta Dattagupta
We revisit here the effect of quantum dissipation on the much - studied problem of Landau diamagnetism, and analyze the results in the light of the third law of thermodynamics. The…