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Families of N=2 Strings
In a given 4d spacetime bakcground, one can often construct not one but a family of distinct N=2 string theories. This is due to the multiple ways N=2 superconformal algebra can be embedded in a given worldsheet theory. We formulate the principle of obtaining different physical theories by gauging d...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2002
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2003/11/026 http://cds.cern.ch/record/591844 |
_version_ | 1780899683246276608 |
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author | Cheung, Yeuk-Kwan E. Oz, Yaron Yin, Zheng |
author_facet | Cheung, Yeuk-Kwan E. Oz, Yaron Yin, Zheng |
author_sort | Cheung, Yeuk-Kwan E. |
collection | CERN |
description | In a given 4d spacetime bakcground, one can often construct not one but a family of distinct N=2 string theories. This is due to the multiple ways N=2 superconformal algebra can be embedded in a given worldsheet theory. We formulate the principle of obtaining different physical theories by gauging different embeddings of the same symmetry algebra in the same ``pre-theory.'' We then apply it to N=2 strings and formulate the recipe for finding the associated parameter spaces of gauging. Flat and curved target spaces of both (4,0) and (2,2) signatures are considered. We broadly divide the gauging choices into two classes, denoted by alpha and beta, and show them to be related by T-duality. The distinction between them is formulated topologically and hinges on some unique properties of 4d manifolds. We determine what their parameter spaces of gauging are under certain simplicity ansatz for generic flat spaces (R^4 and its toroidal compactifications) as well as some curved spaces. We briefly discuss the spectra of D-branes for both alpha and beta families. |
id | cern-591844 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2002 |
record_format | invenio |
spelling | cern-5918442023-03-14T17:08:26Zdoi:10.1088/1126-6708/2003/11/026http://cds.cern.ch/record/591844engCheung, Yeuk-Kwan E.Oz, YaronYin, ZhengFamilies of N=2 StringsParticle Physics - TheoryIn a given 4d spacetime bakcground, one can often construct not one but a family of distinct N=2 string theories. This is due to the multiple ways N=2 superconformal algebra can be embedded in a given worldsheet theory. We formulate the principle of obtaining different physical theories by gauging different embeddings of the same symmetry algebra in the same ``pre-theory.'' We then apply it to N=2 strings and formulate the recipe for finding the associated parameter spaces of gauging. Flat and curved target spaces of both (4,0) and (2,2) signatures are considered. We broadly divide the gauging choices into two classes, denoted by alpha and beta, and show them to be related by T-duality. The distinction between them is formulated topologically and hinges on some unique properties of 4d manifolds. We determine what their parameter spaces of gauging are under certain simplicity ansatz for generic flat spaces (R^4 and its toroidal compactifications) as well as some curved spaces. We briefly discuss the spectra of D-branes for both alpha and beta families.In a given 4d spacetime bakcground, one can often construct not one but a family of distinct N=2 string theories. This is due to the multiple ways N=2 superconformal algebra can be embedded in a given worldsheet theory. We formulate the principle of obtaining different physical theories by gauging different embeddings of the same symmetry algebra in the same ``pre-theory.'' We then apply it to N=2 strings and formulate the recipe for finding the associated parameter spaces of gauging. Flat and curved target spaces of both (4,0) and (2,2) signatures are considered. We broadly divide the gauging choices into two classes, denoted by alpha and beta, and show them to be related by T-duality. The distinction between them is formulated topologically and hinges on some unique properties of 4d manifolds. We determine what their parameter spaces of gauging are under certain simplicity ansatz for generic flat spaces (R^4 and its toroidal compactifications) as well as some curved spaces. We briefly discuss the spectra of D-branes for both alpha and beta families.hep-th/0211147CALT-68-2410CERN-TH-2002-317TAUP-2717-02CALT68-2410CERN-TH-2002-317TAUP-2717oai:cds.cern.ch:5918442002-11-15 |
spellingShingle | Particle Physics - Theory Cheung, Yeuk-Kwan E. Oz, Yaron Yin, Zheng Families of N=2 Strings |
title | Families of N=2 Strings |
title_full | Families of N=2 Strings |
title_fullStr | Families of N=2 Strings |
title_full_unstemmed | Families of N=2 Strings |
title_short | Families of N=2 Strings |
title_sort | families of n=2 strings |
topic | Particle Physics - Theory |
url | https://dx.doi.org/10.1088/1126-6708/2003/11/026 http://cds.cern.ch/record/591844 |
work_keys_str_mv | AT cheungyeukkwane familiesofn2strings AT ozyaron familiesofn2strings AT yinzheng familiesofn2strings |