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QI: Fachverband Quanteninformation

QI 29: Quantum Thermodynamics and Open Quantum Systems II

QI 29.1: Vortrag

Donnerstag, 9. März 2023, 14:30–14:45, B302

The role of generalized entropies in thermodynamics — •Bilal Cantürk — Institute of Physics, University of Freiburg, Hermann-Herder-Straße 3, D-79104 Freiburg, Germany

Generalized entropies have direct consequences on the foundations of thermodynamics, statistical mechanics, information theory, and quantum thermodynamics [1]. Based on formal group theory, a generalized entropy so-called universal group entropy was proposed in [2] which covers some other generalized entropies as its special cases. In our studies [3,4] we investigated whether universal group entropy and its special cases satisfy some fundamental physically accessible conditions such as stability of the average value of the physical observables and the third law of thermodynamics. I will present our findings, their possible implications, and their compatibility with some recent studies [5]. References [1] Lostaglio, M. Rep. Prog. Phys. 82, 114001 (2019). [2] Tempesta, P. Ann.Phys. (N Y) 365, 180 (2016). [3] Canturk, B., et. al. Ann Phys (N Y) 377, 62 (2017). [4] Canturk, B., et. al. Int. J. Mod. Phys. B 32, 1850274 (2018). [5] Oikonomou, T., et. al. Phys. A: Stat. Mech. Appl. 578, 126126 (2021).