xperimental Validation of Fully Quantum Fluctuation Theorems Using Dynamic Bayesian Network

Autor(es)

Micadei, Kaonan ^[1] ; Peterson, John P. S. ^{[2, 3, 4]} ; Souza, Alexandre M. ^[4] ; Sarthour, Roberto S. ^[4] ; Oliveira, Ivan S. ^[4] ; Landi, Gabriel T. ^[5] ; Serra, Roberto M. ^{[6, 7]} ; Lutz, Eric ^[1]

Afiliação do(s) autor(es)

^[1] Univ Stuttgart, Inst Theoret Phys 1, D-70550 Stuttgart - Germany

^[2] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1 - Canada

^[3] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1 - Canada

^[4] Ctr Brasileiro Pesquisas Fis, Rua Dr Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ - Brazil

^[5] Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, SP - Brazil

^[6] Univ York, Dept Phys, York YO10 5DD, N Yorkshire - England

^[7] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, BR-09210580 Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Review Letters; v. 127, n. 18 OCT 29 2021.
• Citações Web of Science: 0

Resumo

Fluctuation theorems are fundamental extensions of the second law of thermodynamics for small systems. Their general validity arbitrarily far from equilibrium makes them invaluable in nonequilibrium physics. So far, experimental studies of quantum fluctuation relations do not account for quantum correlations and quantum coherence, two essential quantum properties. We here apply a novel dynamic Bayesian network approach to experimentally test detailed and integral fully quantum fluctuation theorems for heat exchange between two quantum-correlated thermal spins-1/2 in a nuclear magnetic resonance setup. We concretely verify individual integral fluctuation relations for quantum correlations and quantum coherence, as well as for the sum of all quantum contributions. We further investigate the thermodynamic cost of creating correlations and coherence. (AU)

• Processo FAPESP: 16/08721-7 - Modelagem estocástica de sistemas quânticos fora do equilíbrio
• Beneficiário: Gabriel Teixeira Landi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/07973-5 - Termodinâmica e tecnologias de informação utilizando sistemas quânticos de variáveis contínuas
• Beneficiário: Gabriel Teixeira Landi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/50304-7 - Entropy production in non-equilibrium quantum processes: from foundations to quantum technologies
• Beneficiário: Gabriel Teixeira Landi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/12813-0 - Termodinâmica quântica de sistemas bosônicos
• Beneficiário: Gabriel Teixeira Landi
• Modalidade de apoio: Auxílio à Pesquisa - Regular