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Resumming the pressure

Anton Rebhan
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Abstract

The convergence properties of the resummed thermal perturbation series for the thermodynamic pressure are investigated by comparison with the exact results obtained in large-N phi^4 theory and possibilities for improvements are discussed. By going beyond conventional resummed perturbation theory, renormalization has to be carried out nonperturbatively yet consistently. This is exemplified in large-N phi^4_4 and in a special large-N ϕ^3_6 model that mimics QED in the limit of large flavour number.

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Anton Rebhan. 1998-09-21. Resumming the pressure. https://arxiv.org/abs/hep-ph/9808480

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