One-loop corrections to the Nielsen-Olesen vortex: finite length

Details One-loop corrections to the Nielsen-Olesen vortex: finite length One-loop corrections to the Nielsen-Olesen vortex: finite length

2011-02-06

arxiv.org/abs/1102.1133v1

Phys.Rev.D83:125012,2011

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 5 figures

Scientific paper

10.1103/PhysRevD.83.125012

We consider the one-loop quantum corrections to the Nielsen-Olesen flux tube of finite length $L$, by imposing periodic boundary conditions. The calculations are based on a recent evaluation of these quantum corrections to the string tension of an infinite vortex. The finite length corrections are finite from the outset. If the computation is restricted to the zero modes we obtain the standard L\"uscher term $\pi/3L$ for a closed string. The inclusion of the other fluctuation modes of Higgs and gauge fields, using the numerically computed trace of the Euclidian Green's function, leads to corrections that decrease exponentially with $L$. We present numerical results for these corrections, discuss their possible relevance, and the limitations of the approach.

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