Speaker
Pavel Stránský
(Institute of Particle and Nuclear Physics, Faculty of Mathematics and Physics, Charles University)
Description
It is well known that ESQPTs can either enhance or suppress survival probability of the initial state after a quantum quench. These effects, theoretically demonstrated particularly in the Lipkin model, the Tavis-Cummings model and the Rabi model, see e.g. Refs. [1,2], represent a possible experimental test of criticality in the excited domain. We will show the common origin of both these phenomena and provide their semiclassical explanation in terms of Wigner quasiprobability distributions.
References:
[1] M. Kloc, D. Šimsa, F. Hanák, P.R. Kaprálová-Žďánská, P. Stránský, P. Cejnar, Phys. Rev. A 103, 032213 (2021).
[2] P. Stránský, P. Cejnar, R. Filip, Phys. Rev. A 104, 053722 (2021).
Author
Dr
Michal Kloc
(Department of Physics, University of Basel, Switzerland)
Co-authors
Prof.
Filip Radim
(Department of Optics, Faculty of Science, Palacký University)
Prof.
Pavel Cejnar
(Inst. of Particle and Nuclear Physics, Faculty of Mathematics and Physics, Charles University)
Dr
Daniel Šimsa
(Department of Radiation and Chemical Physics, Institute of Physics, Academy of Sciences of the Czech Republic)
Dr
Petra Ruth Kaprálová-Žďánská
(Department of Radiation and Chemical Physics, Institute of Physics, Academy of Sciences of the Czech Republic)
Dr
Filip Hanák
(Department of Radiation and Chemical Physics, Institute of Physics, Academy of Sciences of the Czech Republic)
