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Vacuum polarization of massive spinor and vector fields in the spacetime of a nonlinear black hole

Jerzy Matyjasek*,†

  • Institute of Physics, Maria Curie-Skłodowska University, pl. Marii Curie-Skłodowskiej 1, 20-031 Lublin, Poland

  • *matyjase@tytan.umcs.lublin.pl
  • †jurek@kft.umcs.lublin.pl
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Phys. Rev. D 76, 084003 – Published 4 October, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.084003

Abstract

Building on general formulas obtained from the approximate renormalized effective action, the stress-energy tensor of the quantized massive spinor and vector fields in the spacetime of the regular black hole is constructed. Such a black hole is the solution to the coupled system of nonlinear electrodynamics and general relativity. A detailed analytical and numerical analysis of the stress-energy tensor in the exterior region is presented. It is shown that for small values of the charge as well as large distances from the black hole the leading behavior of the stress-energy tensor is similar to that in the Reissner-Nordström geometry. Important differences appear when the inner horizon becomes close to the event horizon. A special emphasis is put on the extremal configuration and it is shown that the stress-energy tensor is regular inside the event horizon of the extremal black hole.

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Phys. Rev. D 76, 084003– Published 4 October, 2007
  • Received 10 July 2007

© 2007 American Physical Society

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