A quantum field theory of phonons and boiling in liquids

Toyoyuki Kitamura

Physica A: Statistical Mechanics and its Applications, 1988, vol. 151, issue 2, 303-317

Abstract: Phonons and boiling in liquids is investigated from the viewpoint of quantum field theory at finite temperature, starting with atoms interacting with each other as the first principle. The Ward-Takahashi relation associated with the spontaneous breakdown of the translational invariance in the radial direction shows that there is a Goldstone boson, which is a longitudinal phonon. By making use of the cell model, a longitudinal phonon dispersion curve is presented in the random phase approximation. A criterion of boiling is also proposed.

Date: 1988
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:151:y:1988:i:2:p:303-317

DOI: 10.1016/0378-4371(88)90018-0

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