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Quantum fluctuations of Wilson loops from string models

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arxiv hep-th/9911123 v2 pith:KQI37J2A submitted 1999-11-16 hep-th

classification hep-th
keywords modelsquantumstringwilsonclassicalcorrectiondeterminantfluctuations
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We discuss the impact of quadratic quantum fluctuations on the Wilson loop extracted from classical string theory. We show that a large class of models, which includes the near horizon limit of D_p branes with 16 supersymmetries, admits a L\"{u}scher type correction to the classical potential. We confirm that the quantum determinant associated with a BPS configuration of a single quark in the AdS_5 \times S^5 model is free from divergences. We find that for the Wilson loop in that model, unlike the situation in flat space-time, the fermionic determinant does not cancel the bosonic one. For string models that correspond to gauge theories in the confining phase, we show that the correction to the potential is of a L\"{u}scher type and is attractive.

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  1. Quantum-Corrected Holographic Wilson Loop Expectation Values and Super-Yang-Mills Confinement

    hep-th 2024-12 conditional novelty 5.0 of 10

    Near-horizon quantum gravity fluctuations in an extremal AdS5-Reissner-Nordström black brane make the holographic Wilson loop obey an area law, producing a linear quark-antiquark potential at zero temperature.

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