Quantum thermodynamics with fast driving and strong coupling via the mesoscopic leads approach

Purkayastha, Archak (2023) Quantum thermodynamics with fast driving and strong coupling via the mesoscopic leads approach. Physical Review B, 107 (19). p. 195117. ISSN 1098-0121

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Abstract

Understanding the thermodynamics of driven quantum systems strongly coupled to thermal baths is a central focus of quantum thermodynamics and mesoscopic physics. A variety of different methodological approaches exist in the literature, all with their own advantages and disadvantages. The mesoscopic leads approach was recently generalized to steady-state thermal machines and has the ability to replicate Landauer-Büttiker theory in the noninteracting limit. In this approach a set of discretized lead modes, each locally damped, provide a Markovian embedding for the baths. In this work we further generalize this approach to incorporate an arbitrary time dependence in the system Hamiltonian. Following a careful discussion of the calculation of thermodynamic quantities we illustrate the power of our approach by studying several driven mesoscopic examples coupled to finite-temperature fermionic baths, replicating known results in various limits. In the case of a driven noninteracting quantum dot we show how fast driving can be used to induce heat rectification.

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IITH Creators:

IITH Creators	ORCiD
Purkayastha, Archak	http://www.orcid.org/0000-0002-6204-7280

Item Type:

Article

Uncontrolled Keywords:

Quantum optics; Semiconductor quantum dots; Superconducting materials; Thermodynamics; Mesoscopic physics; Mesoscopics; Methodological approach; Noninteracting; Quantum system; Quantum thermodynamics; Steady state; Strong-coupling; Thermal bath; Thermal machines; Hamiltonians

Subjects:

Physics
Physics > Classical mechanics

Divisions:

Department of Physics

Depositing User:

Mr Nigam Prasad Bisoyi

Date Deposited:

28 Sep 2023 12:37

Last Modified:

28 Sep 2023 12:37

URI:

http://raiithold.iith.ac.in/id/eprint/11716