Výsledky vyhledávání - "Upadhyay, Vipul"

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Current circulation near additional energy degeneracy points in quadratic Fermionic networks

We study heat and particle current circulation (CC) in quadratic Fermionic systems analysed using a general dissipative Lindbladian master equation. It was observed in an earlier study (Upadhyay et al. Phys. Rev. E 107, 034120 (2023)), that CC occurs

Externí odkaz: http://arxiv.org/abs/2401.05140

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Signature of topology via heat transfer analysis in the Su-Schrieffer-Heeger (SSH) model

Autor: Upadhyay, Vipul, Naseem, M. Tahir, Müstecaplıoğlu, Özgür E., Marathe, Rahul

In this work, we explore the potential of thermodynamics as a tool for identifying the topological phase transition. Specifically, we focus on a one-dimensional Su-Schrieffer-Heeger (SSH) chain sandwiched between two fermionic baths. To investigate d

Externí odkaz: http://arxiv.org/abs/2310.02831

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Heat current magnification in Classical and Quantum spin networks

Autor: Upadhyay, Vipul, Gandhi, Poshika, Juneja, Rohit, Marathe, Rahul

Publikováno v: Phys. Rev. E 107, 034120 (2023)

We investigate heat current magnification due to asymmetry in the number of spins in two-branched classical and quantum spin systems. We begin by studying the classical Ising like spin models using Q2R and CCA dynamics and show that just the differen

Externí odkaz: http://arxiv.org/abs/2210.10511

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Heat rectification by two qubits coupled with Dzyaloshinskii-Moriya interaction

Autor: Upadhyay, Vipul, Naseem, M. Tahir, Marathe, Rahul, Müstecaplıoğlu, Özgür E.

We investigate heat rectification in a two-qubit system coupled via the Dzyaloshinskii-Moriya (DM) interaction. We derive analytical expressions for heat currents and thermal rectification and provide possible physical mechanisms behind the observed

Externí odkaz: http://arxiv.org/abs/2106.02891

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