Phase Transitions of Charged Scalars at Finite Temperature and Chemical Potential

Details Phase Transitions of Charged Scalars at Finite Temperature and Chemical Potential Phase Transitions of Charged Scalars at Finite Temperature and Chemical Potential

2010-09-03

arxiv.org/abs/1009.0752v2

JHEP 1012:024,2010

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 3 figures. Version accepted for publication in JHEP

Scientific paper

10.1007/JHEP12(2010)024

We calculate the grand canonical partition function at the one-loop level for scalar quantum electrodynamics at finite temperature and chemical potential. A classical background charge density with a charge opposite that of the scalars ensures the neutrality of the system. For low density systems we find evidence of a first order phase transition. We find upper and lower bounds on the transition temperature below which the charged scalars form a condensate. A first order phase transition may have consequences for helium-core white dwarf stars in which it has been argued that such a condensate of charged helium-4 nuclei could exist.

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