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TT: Fachverband Tiefe Temperaturen

TT 61: Superconductivity: Superconducting Electronics II and Cryotechnique

TT 61.5: Vortrag

Mittwoch, 14. März 2018, 16:15–16:30, H 2053

Quantum information in heat engines — •Mohammad Ansari¹ and Yuli Nazarov² — ¹Forschungszentrum Juelich, Juelich, Germany — ²Delft University of Technology, Delft, Netherlands

We present a universal relation between the flow of a Renyi entropy and the full counting statistics of energy transfers. We prove the exact relation for a flow to a system in thermal equilibrium that is weakly coupled to an arbitrary time-dependent and nonequilibrium system. The exact correspondence, given by this relation, provides a simple protocol to quantify the flows of Shannon and Renyi entropies from the measurements of energy transfer statistics. This finds interesting applications in superconducting quantum bits, photocells, photosynthesis, and other quantum heat engines.
M. H. Ansari, Y. V. Nazarov, Phys. Rev. B 91, 104303, (2015).
M. H. Ansari, Y. V. Nazarov, Phys. Rev. B 91, 174307, (2015).
M. H. Ansari, Y. V. Nazarov, J. Exp. Theor. Phys. 122, 389, (2016).
M. H. Ansari, Phys. Rev. B 95, 174302, (2017).