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arXiv · 2007.05731

Vacuum and thermal fluctuation energies of a soliton at finite temperatures

Song Shu·Xiaogang Li·Jia-Rong Li
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Abstract

We have studied the vacuum and thermal fluctuation energies of a soliton at finite temperatures. First the vacuum energy coming from the Dirac sea is calculated by a summation of the discrete and continuum energy spectrum of the Dirac equation in the background field of a soliton. And all the divergences are removed by the same renormalization scheme at zero temperature. Then the vacuum energy and thermal fluctuation energy at finite temperatures in a temperature dependent soliton background are calculated. And the numerical results are analyzed and discussed.

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Song Shu, Xiaogang Li, Jia-Rong Li. 2020-07-11. Vacuum and thermal fluctuation energies of a soliton at finite temperatures. https://doi.org/10.1016/j.nuclphysa.2021.122256

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