Finite-temperature effective action for composite operators in the O(N) scalar model

G. Pettini

Physica A: Statistical Mechanics and its Applications, 1989, vol. 158, issue 1, 77-84

Abstract: A modified version of the Cornwall-Jackiw-Tomboulis effective action for composite operators is extended at finite temperature in the imaginary-time formalism. As a test, the application to the O(N) scalar model in the N → ∞ limit is presented, showing that it reproduces the known results.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:158:y:1989:i:1:p:77-84

DOI: 10.1016/0378-4371(89)90509-8

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