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arXiv:2106.14018 · Journal of the Korean Physical Society

Role of dissipation in the stability of a parametrically driven quantum harmonic oscillator

Subhasish Chaki, Aranya B. Bhattacherjee

Published Aug 2, 2021• 5 citations
arXivHTMLPDF
DOI
10.1007/s40042-021-00260-6

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Decoherence due to contact with a hot environment typically restricts quantum phenomena to the low temperature limit, kBT/ħω≪1 (ħω is the typical energy of the system). Here we report the existence of a nonequilibrium state for two coupled, parametrically driven, dissipative harmonic oscillators which, contrary to generalized intuition, has stationary entanglement at high temperatures. This clarifies the role of temperature and could lighten the burden on quantum experiments requiring delicate precooling setups.