Thermofield dynamics extension of the open string field theory

We study the application of the rules of thermofield dynamics (TFD) to the covariant formulation of open-string field theory. We extend the states space and fields according to the duplication rules of TFD and construct the corresponding classical action. The result is interpreted as a theory whose...

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Detalles Bibliográficos
Autores principales: Botta Cantcheff, Marcelo Ángel Nicolás, Scherer Santos, R. J.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126120
Aporte de:
id I19-R120-10915-126120
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Physics
Type i string theory
Non-critical string theory
String field theory
Compactification (physics)
Topological string theory
String cosmology
Relationship between string theory and quantum field theory
Theoretical physics
Brst quantization
Quantum mechanics
spellingShingle Física
Physics
Type i string theory
Non-critical string theory
String field theory
Compactification (physics)
Topological string theory
String cosmology
Relationship between string theory and quantum field theory
Theoretical physics
Brst quantization
Quantum mechanics
Botta Cantcheff, Marcelo Ángel Nicolás
Scherer Santos, R. J.
Thermofield dynamics extension of the open string field theory
topic_facet Física
Physics
Type i string theory
Non-critical string theory
String field theory
Compactification (physics)
Topological string theory
String cosmology
Relationship between string theory and quantum field theory
Theoretical physics
Brst quantization
Quantum mechanics
description We study the application of the rules of thermofield dynamics (TFD) to the covariant formulation of open-string field theory. We extend the states space and fields according to the duplication rules of TFD and construct the corresponding classical action. The result is interpreted as a theory whose fields would encode the statistical information of open strings. The physical spectrum of the free theory is studied through the cohomology of the extended Becchi, Rouet, Stora and Tyutin (BRST) charge, and, as a result, we get new fields in the spectrum emerging by virtue of the quantum entanglement, and, noticeably, it presents degrees of freedom that could be identified as those of closed strings. We also show, however, that their appearing in the action is directly related to the choice of the inner product in the extended algebra, so that different sectors of fields could be eliminated from the theory by choosing that product conveniently. Finally, we study the extension of the three-vertex interaction and provide a simple prescription for it of which the results at tree level agree with those of the conventional theory.
format Articulo
Preprint
author Botta Cantcheff, Marcelo Ángel Nicolás
Scherer Santos, R. J.
author_facet Botta Cantcheff, Marcelo Ángel Nicolás
Scherer Santos, R. J.
author_sort Botta Cantcheff, Marcelo Ángel Nicolás
title Thermofield dynamics extension of the open string field theory
title_short Thermofield dynamics extension of the open string field theory
title_full Thermofield dynamics extension of the open string field theory
title_fullStr Thermofield dynamics extension of the open string field theory
title_full_unstemmed Thermofield dynamics extension of the open string field theory
title_sort thermofield dynamics extension of the open string field theory
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/126120
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AT scherersantosrj thermofielddynamicsextensionoftheopenstringfieldtheory
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