Vacuum decay and the effective action at finite temperature |
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Authors: | RJ Cant |
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Institution: | Department of Theoretical Physics, The University, Manchester M13 9PL, UK |
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Abstract: | The problem of vacuum decay at finite temperature is discussed. It is shown that, when the unstable minimum in the potential arises via quantum effects, the corrections to the kinetic terms cannot be ignored since they are singular. This means that previous adaptations of the instanton method to realistic models are suspect. We also discuss alternative methods of calculations which may be able to avoid the problem. |
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