Abstract
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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ArXiv ePrint: 1009.0752
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Rosen, R.A. Phase transitions of charged scalars at finite temperature and chemical potential. J. High Energ. Phys. 2010, 24 (2010). https://doi.org/10.1007/JHEP12(2010)024
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DOI: https://doi.org/10.1007/JHEP12(2010)024