期刊
CHAOS SOLITONS & FRACTALS
卷 171, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2023.113435
关键词
Permanent Rabi oscillation; Dissipation-induced phenomena; Non-linear effect
In a system with intrinsic dissipation, permanent Rabi oscillations are observed in a parametrically driven and dissipative nonlinear dimer. The mechanism for robust oscillations is a suitable combination of gain/loss configuration, nonlinearity and dissipation. This study provides a route to generate and control robust Rabi oscillations in out-of-equilibrium systems in future experiments.
Classical Rabi oscillations (ROs) are a signature feature of an unbroken parity-time (PT)-symmetry in conserva-tive systems. Notwithstanding, they do not persist in systems with intrinsic dissipation from the surroundings. Here, we report permanent ROs in a parametrically driven and dissipative nonlinear dimer in a region of parameters where the conservative system exhibits broken PT-symmetry. We show that the mechanism for robust ROs lies in a suitable combination of typical gain/loss (PT-symmetry) configuration with nonlinearity and dissipation. This study presents a route to generate and control robust ROs in out-of-equilibrium systems in future experiments.
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