Vacuum polarization for a massless spin-1/2 field in the global monopole spacetime at nonzero temperature

DOI10.1088/0264-9381/18/24/310zbMATH Open0993.81042arXivhep-th/0110082OpenAlexW2088504897MaRDI QIDQ4328779

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Publication date: 29 April 2002

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Abstract: In this paper we present the effects produced by the temperature in the renormalized vacuum expectation value of the zero-zero component of the energy-momentum tensor associated with massless left-handed spinor field in the pointlike global monopole spacetime. In order to develop this calculation we had to obtain the Euclidean thermal Green function in this background. Because the expression obtained for the thermal energy density cannot be expressed in a closed form, its explicit dependence on the temperature is not completely evident. So, in order to obtain concrete information about its thermal behavior, we develop a numerical analysis of our result in the high-temperature limit for specific values of the parameter $alpha$ which codify the presence of the monopole.

Full work available at URL: https://arxiv.org/abs/hep-th/0110082

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