Fermionic vacuum polarization in a higher-dimensional global monopole spacetime

Journal Article · Sat Dec 15 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.125021· OSTI ID:21024086

Bezerra de Mello, E R ^[1]

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1. Departamento de Fisica-CCEN, Universidade Federal da Paraiba, 58.059-970, J. Pessoa, PB, C. Postal, 5.008 (Brazil)

In this paper we analyze 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 our Universe, the bulk, is represented by a flat (n-1)-dimensional brane having a global monopole in an extra transverse three-dimensional submanifold. We explicitly calculate the renormalized vacuum average of the energy-momentum tensor, <T{sub A}{sup B}(x)>{sub Ren}, admitting the global monopole as being a pointlike object. We observe that this quantity depends crucially on the value of n, and provide explicit expressions to it for specific values attributed to n.

• OSTI ID: 21024086
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 12; Other Information: DOI: 10.1103/PhysRevD.76.125021; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ENERGY-MOMENTUM TENSOR
FERMIONS
MANY-DIMENSIONAL CALCULATIONS
MASSLESS PARTICLES
MONOPOLES
ONE-DIMENSIONAL CALCULATIONS
QUANTUM FIELD THEORY
SPACE-TIME
THREE-DIMENSIONAL CALCULATIONS
UNIVERSE
VACUUM POLARIZATION