English

Fermionic vacuum polarization in higher-dimensional global monopole spacetime

High Energy Physics - Theory 2008-11-26 v1 General Relativity and Quantum Cosmology

Abstract

In this paper we analyse the vacuum polarization effects associated with a massless fermionic field in a higher-dimensional global monopole spacetime in the "braneworld" scenario. In this context we admit that the our Universe, the bulk, is represented by a flat (n1)(n-1)-dimensional brane having a global monopole in a extra transverse three dimensional submanifold. We explicitly calculate the renormalized vacuum average of the energy-momentum tensor, <TAB(x)>Ren.<T_A^B(x)>_{Ren.}, admitting the global monopole as being a point-like object. We observe that this quantity depends crucially on the value of nn, and we provide explicit expressions to it for specific values attributed to nn.

Keywords

Cite

@article{arxiv.0708.2194,
  title  = {Fermionic vacuum polarization in higher-dimensional global monopole spacetime},
  author = {E. R. Bezerra de Mello},
  journal= {arXiv preprint arXiv:0708.2194},
  year   = {2008}
}

Comments

21 pages, 3 figures

R2 v1 2026-06-21T09:07:57.615Z