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arXiv · 0803.1022

Semiclassical Treatment of Induced Schwinger Processes at Finite Temperature

A. K. Monin·A. V. Zayakin
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Abstract

We consider induced pair production in an external field at finite temperature. One-loop correction to the Green function of a meson is calculated semiclassically within the framework of saddle-point analysis of Schwinger proper time integrals. This correction appears to be exponentially small in terms of inverse temperature dependence. Low-temperature limit is shown to be in full agreement with previously obtained zero-temperature results. The corrections in the low-temperature limits are estimated up to the leading exponential and pre-exponential terms. Comparison is made to earlier calculations of vacuum decay.

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A. K. Monin, A. V. Zayakin. 2008-03-14. Semiclassical Treatment of Induced Schwinger Processes at Finite Temperature. https://doi.org/10.1134/s0021364008110040

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