activity
19952024
most citedCongruences and Canonical Forms for a Positive Matrix: Application to the Schweinler-Wigner Extremum Principle

104 citations · 884 across the 65 of their papers we have counts for

collaborators

65 papers

cond-mat.mes-hall2024★ 6 cited

Stochastic thermodynamics and the Ericsson nano engine -- Efficiency from equilibrium results

Jasleen Kaur, Aritra Ghosh, Sushanta Dattagupta +2

In this work, we study an Ericsson cycle whose working substance is a charged (quantum) oscillator in a magnetic field that is coupled to a heat bath. The resulting quantum Langevi…

quant-ph2020

Properties of Spin and Orbital Angular Momenta of Light

Arvind, S. Chaturvedi, N. Mukunda

This paper analyzes the algebraic and physical properties of the spin and orbital angular momenta of light in the quantum mechanical framework. The consequences of the fact that th…

quant-ph2020★ 1 cited

Symplectic group methods and the Arthurs Kelly model of measurement in quantum mechanics

Arvind, S. Chaturvedi, N. Mukunda

We study the use of methods based on the real symplectic groups in the analysis of the Arthurs-Kelly model of proposed simultaneous measurements of position an…

quant-ph2019

Geometric phases for finite-dimensional systems -- the roles of Bargmann Invariants, Null Phase Curves and the Schwinger Majorana SU(2) framework

K S Akhilesh, Arvind, S Chaturvedi +2

We present a study of the properties of Bargmann Invariants (BI) and Null Phase Curves (NPC) in the theory of the geometric phase for finite dimensional systems. A recent suggestio…

quant-ph2018

Geometric Phase as the Key to Interference in Phase Space : Integral Representations for States and Matrix Elements

Mayukh N. Khan, S. Chaturvedi, N. Mukunda +1

We apply geometric phase ideas to coherent states to shed light on interference phenomenon in the phase space description of continuous variable Cartesian quantum systems. In contr…

quant-ph2018★ 3 cited

On `orbital' and `spin' angular momentum of light in classical and quantum theories -- a general framework

Arvind, Subhash Chaturvedi, N. Mukunda

We develop a general framework to analyze the two important and much discussed questions concerning (a) `orbital' and `spin' angular momentum carried by light and (b) the paraxial…