Influence of Dissipation on Quantum Coherence
摘要：
A quantum mechanical particle which moves in a symmetric double-well potential, and whose interaction with the environment is described in the classical regime by a phenomenological friction coefficient η, is considered. It is shown that, provided ηq02/ exceeds a critical value of order unity (±q0 are the locations of the potential minima), the mean rate of tunneling between the degenerate minima decreases with temperature, leading at T=0 to spontaneous symmetry breaking.
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关键词：
Theoretical or Mathematical/ quantum theory tunnelling/ tunnelling dissipation quantum coherence quantum mechanical particle symmetric double-well potential phenomenological friction coefficient spontaneous symmetry breaking/ A0365B Foundations, theory of quantum measurement, miscellaneous quantum theories A7340G Tunnelling: general (electronic transport)
DOI：
10.1103/physrevlett.49.1545
被引量：
年份：
1982
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