Coherence, Broken Symmetry and Nondissipative Motion of a Quantum Oscillator
DOI:
https://doi.org/10.15407/ujpe71.1.23Keywords:
quantum oscillator, coherent states, broken phase symmetry, anomalous and normal averages, pair correlations, superfluidity, superconductivityAbstract
Using the example of a quantum oscillator, the connection between the dynamical coherent state with the phase symmetry breaking and the existence of the non-dissipative motion is considered. In multiparticle systems of interacting particles similar states manifest themselves as superfluidity and superconductivity.
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