Nonequilibrium nonlinear open quantum systems: Functional perturbative analysis of a weakly anharmonic oscillator
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DOI: 10.1103/physrevd.101.125002
Abstract: We introduce a functional perturbative method for treating weakly nonlinear systems coupled with a quantum field bath. We demonstrate using this method to obtain the covariance matrix elements and the correlation functions of a quantum… read more here.
Keywords: functional perturbative; open quantum; quantum systems; anharmonic oscillator ... See more keywords