3 papers
quant-ph2025
Transition from non-ergodic to ergodic dynamics in an autonomous discrete time crystal
T. T. Sergeev, A. A. Zyablovsky, E. S. Andrianov
We consider an autonomous system of two coupled single-mode cavities, one of which interacts with a multimode resonator. We demonstrate that for small coupling strengths between si…
quant-ph2024
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…
quant-ph2023
Self-consistent description of relaxation processes in systems with ultra- and deep-strong coupling
T. T. Sergeev, A. A. Zyablovsky, E. S. Andrianov +1
An ultra-strong coupling regime takes place in a compound system when a coupling strength between the subsystems exceeds one tenth of the system eigenfrequency. It transforms into…