scholarly journals Vacuum polarization on the Schwarzschild metric threaded by a cosmic string

2010 ◽  
Vol 82 (10) ◽  
Author(s):  
Adrian C. Ottewill ◽  
Peter Taylor
Keyword(s):  
Cosmic String ◽  
Vacuum Polarization ◽  
Schwarzschild Metric

scholarly journals Fermionic vacuum polarization by a flat boundary in cosmic string spacetime

2012 ◽  
Vol 30 (1) ◽  
pp. 015002 ◽  
Author(s):  
E R Bezerra de Mello ◽  
A A Saharian ◽  
S V Abajyan
Keyword(s):  
Cosmic String ◽  
Vacuum Polarization

scholarly journals VACUUM POLARIZATION IN A COSMIC STRING SPACETIME INDUCED BY FLAT BOUNDARY

2011 ◽  
Vol 03 ◽  
pp. 434-445
Author(s):  
EUGÊNIO R. BEZERRA DE MELLO ◽  
ARAM A. SAHARIAN
Keyword(s):  
Cosmic String ◽  
Vacuum Polarization ◽  
Energy Momentum Tensor ◽  
Neumann Boundary ◽  
Vacuum Expectation ◽  
Momentum Tensor ◽  
Massive Scalar ◽  
Expectation Values ◽  
Massive Scalar Field ◽  
Higher Dimensional

In this paper we analyze the vacuum expectation values of the field squared and the energy-momentum tensor associated to a massive scalar field in a higher dimensional cosmic string spacetime, obeying Dirichlet or Neumann boundary conditions on the surface orthogonal to the string.

scholarly journals Vacuum polarization by a flat boundary in cosmic string spacetime

2011 ◽  
Vol 28 (14) ◽  
pp. 145008 ◽  
Author(s):  
E R Bezerra de Mello ◽  
A A Saharian
Keyword(s):  
Cosmic String ◽  
Vacuum Polarization

scholarly journals VACUUM POLARIZATION NEAR BRANE WORLD COSMIC STRING

2002 ◽  
Vol 17 (18) ◽  
pp. 1207-1214 ◽  
Author(s):  
YU. V. GRATS ◽  
A. A. ROSSIKHIN
Keyword(s):  
Gravitational Field ◽  
Cosmic String ◽  
Vacuum Polarization ◽  
Cosmic Strings ◽  
Brane World ◽  
Spatial Dimensions

Gravitational field of cosmic strings in theories with extra spatial dimensions differs significantly from that in the 4D Einstein's theory. This means that all gravity induced properties of cosmic strings need to be revised. Here we consider the effect of vacuum polarization outside a straight infinitely thin cosmic string embedded in RS2 brane world.

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