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

10 citations

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10 papers · 1 filter

gr-qc2024★ 3 cited

On the Field Theoretical Description of an Alternative Model to Generalized Chaplygin Gas and its Thermodynamic Behaviour

Tamal Mukhopadhyay, Banadipa Chakraborty, Ujjal Debnath +1

This paper investigates a newly proposed fluid description of dark energy within the framework of the late-time accelerated expansion of the universe. Our primary objective is to e…

gr-qc2024★ 1 cited

Gravitational waves driven by Holographic dark energy

Sayani Maity, Prabir Rudra

In this paper, we have studied the effects of holographic dark energy on the evolution of gravitational waves. The background evolution of gravitational waves in a flat FRW univers…

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…

gr-qc2024★ 4 cited

Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits

Banadipa Chakraborty, Tamal Mukhopadhyay, Anamika Kotal +1

We present a comprehensive investigation exploring the theoretical framework of Einstein-Aether gravity theory when combined with two modified cosmological paradigms: the Barrow Ag…

cond-mat.dis-nn2024★ 1 cited

Quantum transport under oscillatory drive with disordered amplitude

Vatsana Tiwari, Sushanta Dattagupta, Devendra Singh Bhakuni +1

We investigate the dynamics of non-interacting particles in a one-dimensional tight-binding chain in the presence of an electric field with random amplitude drawn from a Gaussian d…

gr-qc2024★ 9 cited

Reconstructions of and gravity models from -type Barrow Holographic Dark Energy: Analysis and Observational Constraints

Tamal Mukhopadhyay, Banadipa Chakraborty, Anamika Kotal +1

In this research, we have reconstructed the extended cubic gravity and symmetric teleparallel gravity from the -type Barrow Holographic Dar…

gr-qc2024★ 6 cited

Form Invariance of Raychaudhuri equation in the presence of Inflaton-type fields

Arijit Panda, Debashis Gangopadhyay, Goutam Manna

We show that the Raychaudhuri equation remains form invariant for certain solutions of scalar fields whose Lagrangian is non-canonical and of the form $\mathcal{L}(X,ϕ)=-V(ϕ)F(…

quant-ph2024★ 2 cited

Weak-coupling limits of the quantum Langevin equation for an oscillator

Aritra Ghosh, Sushanta Dattagupta

The quantum Langevin equation as obtained from the independent-oscillator model describes a strong-coupling situation, devoid of the Born-Markov approximation that is employed in t…

astro-ph.CO2024★ 8 cited

Constraining Cosmological Parameters with Viscous Modified Chaplygin Gas and Generalized Cosmic Chaplygin Gas Models in Horava-Lifshitz Gravity: Utilizing Late-time Datasets

Sayani Maity, Himanshu Chaudhary, Ujjal Debnath +2

This study examines accelerated cosmic expansion using the Viscous Modified Chaplygin Gas (VMMG) and Generalized Cosmic Chaplygin Gas (GCCM) within Horava-Lifshitz gravity. Our aim…

gr-qc2024★ 5 cited

NEC violation in gravity in the context of a non-canonical theory via modified Raychaudhuri equation

Arijit Panda, Debashis Gangopadhyay, Goutam Manna

In this work, we develop the Raychaudhuri equation in gravity in the setting of a non-canonical theory, namely K-essence theory. We solve the modified Raychaud…