期刊
NUCLEAR PHYSICS B
卷 831, 期 1-2, 页码 306-328出版社
ELSEVIER
DOI: 10.1016/j.nuclphysb.2010.01.020
关键词
Vacuum polarization energy; Cosmic string; Non-abelian gauge theory; Jost function
资金
- National Science Foundation (NSF) [PHY05-55338, PHY08-55426]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855426] Funding Source: National Science Foundation
We develop a method to compute the fermion contribution to the vacuum polarization energy of stringlike configurations in a non-abelian gauge theory. This calculation has been hampered previously by a number of technical obstacles. We use gauge invariance of the energy and separation of length scales in the energy density to overcome these obstacles. We present a proof-of-principle investigation that shows that this energy is small in the (MS) over bar renormalization scheme. The generalization to other schemes is straightforward. (C) 2010 Elsevier B.V. All rights reserved.
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