☆ 4.8 Article

Width of the Confining String in Yang-Mills Theory

PHYSICAL REVIEW LETTERS (2010)

Journal

PHYSICAL REVIEW LETTERS

Volume 104, Issue 23, Pages -

Publisher

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevLett.104.232001

Keywords

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Categories

Physics, Multidisciplinary

Funding

Schweizerischer Nationalfonds (SNF)

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Abstract

We investigate the transverse fluctuations of the confining string connecting two static quarks in (2 + 1)D SU(2) Yang-Mills theory using Monte Carlo calculations. The exponentially suppressed signal is extracted from the large noise by a very efficient multilevel algorithm. The resulting width of the string increases logarithmically with the distance between the static quark charges. Corrections at intermediate distances due to universal higher-order terms in the effective string action are calculated analytically. They accurately fit the numerical data.

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