Related papers: Quantum heat engine with long-range advantages

Quantum heat engine with long-range advantages

URL: http://arxiv.org/abs/2208.09492v2
Date: Wed, 17 May 2023 13:59:00 GMT
Title: Quantum heat engine with long-range advantages
Authors: Andrea Solfanelli, Guido Giachetti, Michele Campisi, Stefano Ruffo, Nicol\`o Defenu
Abstract summary: Long-range interactions in quantum devices provide a route towards enhancing their performance in quantum technology applications. We show that a substantial thermodynamic advantage may be achieved as the range of the interactions among its constituents increases. This effect allows mitigating the trade-off between power and efficiency, paving the way for a wide range of experimental and technological applications.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The employment of long-range interactions in quantum devices provides a promising route towards enhancing their performance in 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. Interestingly, such an 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.

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