Heterotic α’-corrections in Double Field Theory
We extend the generalized flux formulation of Double Field Theory to include all the first order bosonic contributions to the α′ expansion of the heterotic string low energy effective theory. The generalized tangent space and duality group are enhanced by α′ corrections, and the gauge symmetries are...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n12_p_Bedoya |
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todo:paper_11266708_v2014_n12_p_Bedoya2023-10-03T16:07:05Z Heterotic α’-corrections in Double Field Theory Bedoya, O.A. Marqués, D. Núñez, C. String Duality Superstrings and Heterotic Strings We extend the generalized flux formulation of Double Field Theory to include all the first order bosonic contributions to the α′ expansion of the heterotic string low energy effective theory. The generalized tangent space and duality group are enhanced by α′ corrections, and the gauge symmetries are generated by the usual (gauged) generalized Lie derivative in the extended space. The generalized frame receives derivative corrections through the spin connection with torsion, which is incorporated as a new degree of freedom in the extended bein. We compute the generalized fluxes and find the Riemann curvature tensor with torsion as one of their components. All the four-derivative terms of the action, Bianchi identities and equations of motion are reproduced. Using this formalism, we obtain the first order α′ corrections to the heterotic Buscher rules. The relation of our results to alternative formulations in the literature is discussed and future research directions are outlined. © 2014, The Author(s). Fil:Marqués, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n12_p_Bedoya |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
String Duality Superstrings and Heterotic Strings |
| spellingShingle |
String Duality Superstrings and Heterotic Strings Bedoya, O.A. Marqués, D. Núñez, C. Heterotic α’-corrections in Double Field Theory |
| topic_facet |
String Duality Superstrings and Heterotic Strings |
| description |
We extend the generalized flux formulation of Double Field Theory to include all the first order bosonic contributions to the α′ expansion of the heterotic string low energy effective theory. The generalized tangent space and duality group are enhanced by α′ corrections, and the gauge symmetries are generated by the usual (gauged) generalized Lie derivative in the extended space. The generalized frame receives derivative corrections through the spin connection with torsion, which is incorporated as a new degree of freedom in the extended bein. We compute the generalized fluxes and find the Riemann curvature tensor with torsion as one of their components. All the four-derivative terms of the action, Bianchi identities and equations of motion are reproduced. Using this formalism, we obtain the first order α′ corrections to the heterotic Buscher rules. The relation of our results to alternative formulations in the literature is discussed and future research directions are outlined. © 2014, The Author(s). |
| format |
JOUR |
| author |
Bedoya, O.A. Marqués, D. Núñez, C. |
| author_facet |
Bedoya, O.A. Marqués, D. Núñez, C. |
| author_sort |
Bedoya, O.A. |
| title |
Heterotic α’-corrections in Double Field Theory |
| title_short |
Heterotic α’-corrections in Double Field Theory |
| title_full |
Heterotic α’-corrections in Double Field Theory |
| title_fullStr |
Heterotic α’-corrections in Double Field Theory |
| title_full_unstemmed |
Heterotic α’-corrections in Double Field Theory |
| title_sort |
heterotic α’-corrections in double field theory |
| url |
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n12_p_Bedoya |
| work_keys_str_mv |
AT bedoyaoa heteroticacorrectionsindoublefieldtheory AT marquesd heteroticacorrectionsindoublefieldtheory AT nunezc heteroticacorrectionsindoublefieldtheory |
| _version_ |
1807314384480894976 |