Gaussian effective potential and symmetry restoration at high temperatures in four-dimensionalO(N)×O(N) field theory |
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Authors: | K G Klimenko |
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Institution: | 1. Institute for High Energy Physics, SU-142284, Serpukhov, Moscow Region, USSR
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Abstract: | The phase structure of theO(N)×O(N) scalar theory (1) has been studied in the Gaussian potential approximation. It has been shown that at a zero temperature a spontaneous breaking of symmetry is possible. At sufficiently largeT theO(N)×O(N) invariance of the model is restored. |
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