Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
Ruhr University Bochum, Faculty of Physics and Astronomy, Bochum, 44780, Germany ; National University of Science and Technology MISiS, Moscow, 119049, Russia ; International Institute of Physics, UFRN, 59078-400 Natal, Brazil
We suggest and study a model of interacting fermions demonstrating existence of a thermodynamically stable quantum time-space crystal. An order parameter characterizing this state is periodic in both real and imaginary times. The imaginary-time dependence is used for calculation of the free energy of the system, while the real-time dependence leads to non-decaying oscillation of correlation functions of two- and more times. Single-time physical quantities do not depend on time. The oscillation of correlation functions at different time scan in principle be observed in scattering experiments.
oai:arar.sci.am:23575
ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան
Dec 13, 2023
Feb 27, 2020
27
https://arar.sci.am/publication/26348
Հրատարակութեան անունը | Թուական |
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Thermodynamic Quantum Time-Space Crystal: Spontaneous Breaking of Time-Translation Invariance | Dec 13, 2023 |
H. Arian Zad A. Zoshki N. Ananikian
G. Yu. Kryuchkyan H. S. Karayan A. G. Chibukhchyan A. R. Shahinyan
A. H. Harutyunyan
V. A. Manukyan