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Implementation of a two-stroke quantum heat engine with a collisional model

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Autor(es):
Melo, Filipe, V ; Sa, Nahum ; Roditi, Itzhak ; Souza, Alexandre M. ; Oliveira, Ivan S. ; Sarthour, Roberto S. ; Landi, Gabriel T.
Número total de Autores: 7
Tipo de documento: Artigo Científico
Fonte: PHYSICAL REVIEW A; v. 106, n. 3, p. 7-pg., 2022-09-07.
Resumo

We put forth a quantum simulation of a stroboscopic two-stroke thermal engine in the IBM quantum (IBMQ) processor. The system consists of a quantum spin chain connected to two baths at their boundaries, prepared at different temperatures using the variational quantum thermalizer algorithm. The dynamics alternates between heat and work strokes, which can be separately designed using independent quantum circuits. The results show good agreement with theoretical predictions, showcasing IBMQ as a powerful tool to study thermodynamics in the quantum regime, as well as the implementation of variational quantum algorithms in real-world quantum computers. It also opens the possibility of simulating quantum heat transport across a broad range of chain geometries and interactions. (AU)

Processo FAPESP: 19/14072-0 - Termodinâmica de precisão em dispositivos quânticos fora do equilíbrio
Beneficiário:Gabriel Teixeira Landi
Modalidade de apoio: Bolsas no Exterior - Pesquisa