Conformal anomaly of Wilson surface observables - a field theoretical computation

Details Conformal anomaly of Wilson surface observables - a field theoretical computation Conformal anomaly of Wilson surface observables - a field theoretical computation

2004-04-20

arxiv.org/abs/hep-th/0404150v4

JHEP 0407 (2004) 074

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, V3: an `i' dropped in the Wilson surface, overall normalization and misprints corrected, V4: overall normalization f

Scientific paper

10.1088/1126-6708/2004/07/074

We make an exact field theoretical computation of the conformal anomaly for two-dimensional submanifold observables. By including a scalar field in the definition for the Wilson surface, as appropriate for a spontaneously broken A_1 theory, we get a conformal anomaly which is such that N times it is equal to the anomaly that was computed in hep-th/9901021 in the large N limit and which relied on the AdS-CFT correspondence. We also show how the spherical surface observable can be expressed as a conformal anomaly.

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