Many-body quantum heat engines based on free-fermion systems

Appears in collection : 2024 - T1 - WS1 - Quantum simulators

We study the thermodynamics of free-fermion systems coupled to quantum thermal baths within a Markovian approximation. In particular, we construct a four-stroke quantum Otto engine by alternately coupling such kind of systems to two reservoirs at different temperatures and operating adiabatic switches of some Hamiltonian parameters, followed by isochoric transformations.

We show that the engine can operate in four different modes; in particular it can act as a heat engine and as a refrigerator, with thermodynamic performances that are affected by the possible presence of quantum criticality in the model. We also discuss the effects of non perfect thermalization with the baths and of adiabatic processes which are executed in a finite width of time.

Information about the video

Date of recording 05/02/2024
Date of publication 05/02/2024
Institution IHP
Language English
Audience Researchers, Graduate Students, Students
Director(s) Alexandre Duplessis, Fabrizio Scapin
Format MP4
Venue Amphitheater Hermite, IHP

Citation data

DOI 10.57987/IHP.2024.T1.WS1.005
Cite this video Rossini, Davide (05/02/2024). Many-body quantum heat engines based on free-fermion systems. IHP. Audiovisual resource. DOI: 10.57987/IHP.2024.T1.WS1.005
URL https://dx.doi.org/10.57987/IHP.2024.T1.WS1.005