The Josephson junction as a quantum engine

dc.creatorAlicki, Robert
dc.creatorHorodecki, Michal
dc.creatorJenkins Villalobos, Alejandro
dc.creatorLobejko, Marcin
dc.creatorSuárez, Gerardo
dc.date.accessioned2024-01-05T15:00:00Z
dc.date.available2024-01-05T15:00:00Z
dc.date.issued2023-11-10
dc.description.abstractWe treat the Cooper pairs in the superconducting electrodes of a Josephson junction (JJ) as an open system, coupled via Andreev scattering to external baths of electrons. The disequilibrium between the baths generates the direct-current bias applied to the JJ. In the weak-coupling limit we obtain a Markovian master equation that provides a simple dynamical description consistent with the main features of the JJ, including the form of the current-voltage characteristic, its hysteresis, and the appearance under periodic voltage driving of discrete Shapiro steps. For small dissipation, our model also exhibits a self-oscillation of the JJ's electrical dipole with frequency Ω = 2eV/ℏ around mean voltage V. This self-oscillation, associated with "hidden attractors" of the nonlinear equations of motion, explains the observed production of monochromatic radiation with frequency Ω and its harmonics. We argue that this picture of the JJ as a quantum engine resolves open questions about the Josephson effect as an irreversible process and could open new perspectives in quantum thermodynamics and in the theory of dynamical systems.es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Físicaes_ES
dc.description.sponsorshipFoundation for Polish Science//FNP/Poloniaes_ES
dc.description.sponsorshipInternational Research Agendas Programme//IRAP/Poloniaes_ES
dc.description.sponsorshipPolish National Science Centre///Poloniaes_ES
dc.description.sponsorshipQuantERA II Programme///Poloniaes_ES
dc.identifier.doi10.1088/1367-2630/ad06d8
dc.identifier.issn1367-2630
dc.identifier.urihttps://hdl.handle.net/10669/90706
dc.language.isoenges_ES
dc.rightsacceso abierto
dc.sourceNew Journal of Physics 25es_ES
dc.subjectsuperconductivityes_ES
dc.subjectJosephson junctionses_ES
dc.subjectquantum engineses_ES
dc.subjectquantum thermodynamicses_ES
dc.subjectself-oscillationses_ES
dc.subjecthidden attractorses_ES
dc.titleThe Josephson junction as a quantum enginees_ES
dc.typeartículo originales_ES

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