Quantum heat engine with long-range advantages
Year: 2023
Authors: Solfanelli A., Giachetti G., Campisi M., Ruffo S., Defenu N.
Autors Affiliation: Sissa, Via Bonomea 265, I-34136 Trieste, Italy; Sez Trieste, INFN, Via Valerio 2, I-34127 Trieste, Italy; Ist Nanosci, NEST, CNR, I-56127 Pisa, Italy; Scuola Normale Super Pisa, I-56127 Pisa, Italy; Ist Sistemi Complessi, Via Madonna Piano 10, I-50019 Sesto Fiorentino, Italy; Swiss Fed Inst Technol, Inst Theoret Phys, Wolfgang Pauli Str 27, Zurich, Switzerland.
Abstract: Long-range interacting quantum devices provides a promising route for quantum technology applications. Here, the presence of long-range interactions is shown to enhance the performances of a quantum heat engine featuring a many-body working substance. We focus on the paradigmatic example of a Kitaev chain undergoing a quantum Otto cycle and show that a substantial thermodynamic advantage may be achieved as the range of the interactions among its constituents increases. The advantage is most significant for the realistic situation of a finite time cycle: the presence of long-range interactions reduces the non-adiabatic energy losses, by suppressing the detrimental effects of dynamically generated excitations. This effect allows mitigating the trade-off between power and efficiency, paving the way for a wide range of experimental and technological applications.
Journal/Review: NEW JOURNAL OF PHYSICS
Volume: 25 (3) Pages from: 33030-1 to: 33030-26
More Information: AcknowledgmentsM C acknowledges useful discussions with G Piccitto and D Rossini on a problem that is closely related to the present work. We acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). This work is part of the MIUR-PRIN2017 project Coarse-grained description for nonequilibrium systems and transport phenomena (CO-NEST) No. 201798CZL.KeyWords: quantum heat engines and refrigerators; long-range interactions; quantum phase transitionsDOI: 10.1088/1367-2630/acc04eCitations: 15data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)