Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 58: Quantum Information Concepts in Thermodynamics

FM 58.6: Talk

Mittwoch, 25. September 2019, 15:30–15:45, 3042

Quantum entropy flow is different — •Alwin van Steensel and Mohammad Ansari — Forschungszentrum Jülich, Jülich Aachen Reseach Alliance (JARA), Jülich, Germany

In quantum physics physical quantities are linear in density matrix, e.g. energy, current, spin, etc. However, this is not the case in quantum information theory as informational measures are nonlinear functions in density matrix; examples are entropy, fidelity loss, purity, etc. Is there any way to measure information in the lab using physical quantities? This is an important question that I will address in this talk. I will present a new correspondence between entropy and physical quantities and how it may introduce new physics.

References: [1] MH Ansari, Entropy production in a photovoltaic cell, Physical Review B 95 (17), 174302 (2017); [2] MH Ansari, YV Nazarov, Keldysh formalism for multiple parallel worlds, Journal of Experimental and Theoretical Physics 122 (3), 389-401 (2016); [3] MH Ansari, YV Nazarov, Exact correspondence between Renyi entropy flows and physical flows, Physical Review B 91 (17), 174307 (2015); [4] MH Ansari, YV Nazarov, Renyi entropy flows from quantum heat engines, Physical Review B 91 (10), 104303 (2015).