Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2019

Volume:

12

Number:

3

ISSN:

1829-1171

Official URL:

Corporate Creators:

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

Coverage:

240-247

Abstract:

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.

Date created:

2019-10-17

Format:

pdf

Identifier:

oai:arar.sci.am:23575

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան