Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-08-19
Phys.Rev.D84:044029,2011
Physics
High Energy Physics
High Energy Physics - Theory
RevTex, 14 pages, 3 figures, to be published in Phys.Rev.D
Scientific paper
10.1103/PhysRevD.84.044029
We considered the behaviour of Dirac fermion modes in the background of Euclidean dilaton black hole with an Abelian Higgs vortex passing through it. Fermions were coupled to the fields due to the superconducting string model. The case of nonextremal and extremal charged black hole in the theory with arbitrary coupling constant between dilaton field and U(1)-gauge field were considered. We elaborated the cases of zero and non-zero Dirac fermion modes. One finds the evidence that the system under consideration can support fermion fields acting like superconducting hair on black hole in the sence that nontrivial spinor field configuration can be carried by Euclidean spherically symmetric charged dilaton black hole. It was revealed that the localization of Dirac fermion modes depended on the cosmic string winding number and the value of black hole surface gravity.
Nakonieczny Lukasz
Rogatko Marek
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