Effective Electromagnetic Lagrangian at Finite Temperature and Density in the Electroweak Model

Abstract

Using the exact propagators in a constant magnetic field, the effective electromagnetic Lagrangian at finite temperature and density is calculated to all orders in the field strength B within the framework of the complete electroweak model, in the weak coupling limit. The partition function and free energy are obtained explicitly and the finite temperature effective coupling is derived in closed form. Some implications of this result, potentially interesting to astrophysics and cosmology, are discussed.

14 pages, Revtex4

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Cited by in corpus (4)

• Finite temperature Casimir effect for charged massless scalars in a magnetic field
• Symmetry restoration at finite temperature with weak magnetic fields
• Finite temperature Casimir effect for massive scalars in a magnetic field
• Magnetic field corrections to the repulsive Casimir effect at finite temperature