Abstract
A homework problem is given in which a particle in a double well in contact with an infinite bath of two-level systems undergoes a phase transition from the familiar, non-degenerate, symmetric, non-local state of the isolated particle, to a pair of asymmetric states favoring one or the other of the wells, as the coupling to the bath increases or as the tunneling amplitude between the two wells decreases.
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More From: Physica A: Statistical Mechanics and its Applications
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