Can a phase transition make quantum mechanics less embarrassing?

N. David Mermin

Physica A: Statistical Mechanics and its Applications, 1991, vol. 177, issue 1, 561-566

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.

Date: 1991
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:177:y:1991:i:1:p:561-566

DOI: 10.1016/0378-4371(91)90201-M

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