Quantum tunneling of superconducting string currents

被引：10

作者：

Blanco-Pillado, JJ ^{[1
]}

Olum, KD

Vilenkin, A

机构：

[1] Tufts Univ, Dept Phys & Astron, Inst Cosmol, Medford, MA 02155 USA

[2] Univ Cambridge, DAMTP, CMS, Cambridge CB3 0WA, England

[3] Tufts Univ, Dept Phys & Astron, Inst Cosmol, Medford, MA 02155 USA

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.66.023506

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the decay of current on a superconducting cosmic string through quantum tunneling. We construct the instanton describing tunneling in a simple bosonic string model, and estimate the decay rate. The tunneling rate vanishes in the limit of a chiral current. This conclusion, which is supported by a symmetry argument, is expected to apply in general. It has important implications for the stability of chiral vortons.

引用

页数：6

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