Wilson loops stability in the gauge/string correspondence

We study the stability of some classical string worldsheet solutions employed for computing the potential energy between two static fundamental quarks in confining and non-confining gravity duals. We discuss the fixing of the diffeomorphism invariance of the string action, its relation with the fluc...

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Autores principales: Arias, Raúl Eduardo, Silva, Guillermo Ariel
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2010
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132667
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id I19-R120-10915-132667
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Gauge-gravity correspondence
AdS-CFT Correspondence
spellingShingle Ciencias Exactas
Física
Gauge-gravity correspondence
AdS-CFT Correspondence
Arias, Raúl Eduardo
Silva, Guillermo Ariel
Wilson loops stability in the gauge/string correspondence
topic_facet Ciencias Exactas
Física
Gauge-gravity correspondence
AdS-CFT Correspondence
description We study the stability of some classical string worldsheet solutions employed for computing the potential energy between two static fundamental quarks in confining and non-confining gravity duals. We discuss the fixing of the diffeomorphism invariance of the string action, its relation with the fluctuation orientation and the interpretation of the quark mass substraction worldsheet needed for computing the potential energy in smooth (confining) gravity background. We consider various dual gravity backgrounds and show by a numerical analysis the existence of instabilities under linear fluctuations for classical string embedding solutions having positive length function derivative L'(r₀) > 0. Finally we make a brief discussion of 't Hooft loops in non-conformal backgrounds.
format Articulo
Preprint
author Arias, Raúl Eduardo
Silva, Guillermo Ariel
author_facet Arias, Raúl Eduardo
Silva, Guillermo Ariel
author_sort Arias, Raúl Eduardo
title Wilson loops stability in the gauge/string correspondence
title_short Wilson loops stability in the gauge/string correspondence
title_full Wilson loops stability in the gauge/string correspondence
title_fullStr Wilson loops stability in the gauge/string correspondence
title_full_unstemmed Wilson loops stability in the gauge/string correspondence
title_sort wilson loops stability in the gauge/string correspondence
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/132667
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