output
20152025
most citedIndependent-oscillator model and the quantum Langevin equation for an oscillator: A review

10 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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5 papers · 1 filter

cond-mat.stat-mech2025

Spin-orbit coupled spin-boson model : A variational analysis

Sudip Sinha, Subhasis Sinha, Sushanta Dattagupta

The spin-boson (SB) model is a standard prototype for quantum dissipation, which we generalize in this work, to explore the dissipative effects on a one-dimensional spin-orbit (SO)…

astro-ph.CO2025

Observational Insights on DBI K-essence Models Using Machine Learning and Bayesian Analysis

Samit Ganguly, Arijit Panda, Eduardo Guendelman +3

We perform a late-time cosmological study; we compare the performance of two Dirac-Born-Infeld (DBI)-type k-essence scalar field extensions of the CDM model to the standard fram…

gr-qc2025

From Geometry to Observation: Gravitational Waves and the Raychaudhuri Equation

Sougata Bhunia, Anubhab Dutta, Debashis Gangopadhyay +1

Gravitational waves (GWs) are independent of any particular theory of gravity. The universality of this notion is highlighted by the Raychaudhuri equation (RE), which is independen…

gr-qc2025★ 3 cited

Non-Affine Extensions of the Raychaudhuri Equation in the K-essence Framework

Samit Ganguly, Goutam Manna, Debashis Gangopadhyay +2

We present a new avenue of the Raychaudhuri Equation (RE) by introducing a non-affine parametrization within the k-essence framework. This modification accounts for non-geodesic fl…

cond-mat.stat-mech2025★ 2 cited

Brownian-motion approach to statistical mechanics: Langevin equations, fluctuations, and timescales

Sushanta Dattagupta, Aritra Ghosh

We briefly review the problem of Brownian motion and describe some intriguing facets. The problem is first treated in its original form as enunciated by Einstein, Langevin, and oth…