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The 3d Effective Field Theory for Finite Temperature Scalar Electrodynamics

Jens O. Andersen
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Abstract

The effective field theory approach to high temperature field theory can be used to study the phase transition in theories with spontaneously broken symmetry. I construct a sequence of two effective three--dimensional field theories which are valid on successively longer distance scales for a specific model: $N$ charged scalars coupled to a U(1) gauge field. The resulting effective Lagrangian can be used to investigate the phase transition, in particular the order of the phase transition as a function of $N$, using lattice simulations.

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Jens O. Andersen. 1998-09-15. The 3d Effective Field Theory for Finite Temperature Scalar Electrodynamics. https://doi.org/10.1103/physrevd.59.065015

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