Effective actions for finite temperature Lattice Gauge Theories

Università degli Studi di Torino, Torino, Piedmont, Italy
Nuclear Physics B - Proceedings Supplements (Impact Factor: 0.88). 09/1996; 53(1-3). DOI: 10.1016/S0920-5632(96)00687-1
Source: arXiv


We consider a lattice gauge theory at finite temperature in ($d$+1) dimensions with the Wilson action and different couplings $\beta_t$ and $\beta_s$ for timelike and spacelike plaquettes. By using the character expansion and Schwinger-Dyson type equations we construct, order by order in $\beta_s$, an effective action for the Polyakov loops which is exact to all orders in $\beta_t$. As an example we construct the first non-trivial order in $\beta_s$ for the (3+1) dimensional SU(2) model and use this effective action to extract the deconfinement temperature of the model. Comment: Talk presented at LATTICE96(finite temperature)

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Available from: Michele Caselle, Sep 03, 2013
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