Vacuum Structure and Global Strings with Conical Singularities

Details Vacuum Structure and Global Strings with Conical Singularities Vacuum Structure and Global Strings with Conical Singularities

2002-08-20

arxiv.org/abs/hep-th/0208140v1

Phys.Lett. B549 (2002) 221-228

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 13 pages, 2 figures

Scientific paper

10.1016/S0370-2693(02)02894-0

Vacuum structure and global cosmic strings are analyzed in the effective theory of self-interacting O(2) scalar fields on (3+1)-manifolds with conical singularities. In the context of one-loop effective action computed by heat-kernel methods with $\zeta$-function regularization, we find an inhomogeneous vacuum of minimum energy and suggest some reason why low-energy global strings are likely to be generated at the conical singularities.

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