4 papers · 1 filter
Second-law-allowed temporal cooling of the coldest reservoir without external refrigeration
I. V. Vovchenko, A. A. Zyablovsky, A. A. Pukhov +1
Non-equilibrium quantum thermodynamics is an intensively developing field with many existing applications. We study the dynamics of temperatures and chemical potentials of fermioni…
Spontaneous PT-symmetry breaking transitions under the influence of noise in an optomechanical system
A. R. Mukhamedyanov, E. S. Andrianov, A. A. Zyablovsky
Spontaneous symmetry breaking is a phenomenon of an alteration of a state symmetry without a change in the system symmetry. A transition from a state with unbroken symmetry to a st…
Non-monotonic dependence of the radiation linewidth in a phonon laser
A. R. Mukhamedyanov, E. S. Andrianov, A. A. Zyablovsky
A phonon laser is an important device that can generate coherent sound waves at gigahertz frequency. In this paper, we demonstrate that in a phonon laser, the radiation line width…
Spontaneous breaking of time translation symmetry in a system without periodic external driving
T. T. Sergeev, A. A. Zyablovsky, E. S. Andrianov +1
It is known that the spontaneous time translation symmetry breaking can occur in systems periodically driven at a certain period. We predict a spontaneous breaking of time translat…