Counterterms for linear divergences in classical real-time gauge theories at high temperatures
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| Publication date | 2000 |
| Journal | Nuclear Physics B |
| Volume | Issue number | 575 |
| Pages (from-to) | 383-396 |
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| Abstract | Real-time classical SU(N) gauge theories at non-zero temperature contain linear divergences. We introduce counterterms for these divergences in the equations of motion in the continuum and on the lattice. These counterterms can be given in terms of auxiliary fields that satisfy local equations of motion. We present a lattice model with 6+1D auxiliary fields that for IR-sensitive quantities yields cut-off independent results to leading order in the coupling. Also an approximation with 5+1D auxiliary fields is discussed. |
| Document type | Article |
| Published at |
https://doi.org/10.1016/S0550-3213(00)00080-8
(Final published version)
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