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Spectral function at high temperature

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Published Article
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DOI: 10.1016/S0920-5632(01)01771-6
arXiv ID: hep-lat/0109024
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arXiv
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Abstract

For a weakly coupled quantum field at high temperature the classical approximation offers a possibility to gain insight into nonperturbative real-time dynamics. I use this to present a nonperturbative approach to the computation of spectral functions in real time. Results are shown for a scalar field in 2+1 dimensions.

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