Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds
Abstract We study the type II string vacua with chiral space-time SUSY constructed as asymmetric orbifolds of torus and K3 compactifications. Despite the fact that all the D-branes are non-BPS in any chiral SUSY vacua, we show that the relevant non-geometric vacua of asymmetric orbifolds allow rathe...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-08-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP08(2017)082 |
| _version_ | 1818450175004246016 |
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| author | Yuji Satoh Yuji Sugawara Takahiro Uetoko |
| author_facet | Yuji Satoh Yuji Sugawara Takahiro Uetoko |
| author_sort | Yuji Satoh |
| collection | DOAJ |
| description | Abstract We study the type II string vacua with chiral space-time SUSY constructed as asymmetric orbifolds of torus and K3 compactifications. Despite the fact that all the D-branes are non-BPS in any chiral SUSY vacua, we show that the relevant non-geometric vacua of asymmetric orbifolds allow rather generally configurations of D-branes which lead to vanishing cylinder amplitudes, implying the bose-fermi cancellation at each mass level of the open string spectrum. After working on simple models of toroidal asymmetric orbifolds, we focus on the asymmetric orbifolds of T 2 × ℳ, where ℳ is described by a general N $$ \mathcal{N} $$ = 4 SCFT with c = 6 defined by the Gepner construction for K3. Even when the modular invariant partition functions in the bulk remain unchanged, the spectra of such non-BPS D-branes with the bose-fermi cancellation can vary significantly according to the choice of orbifolding. |
| first_indexed | 2024-12-14T20:47:07Z |
| format | Article |
| id | doaj.art-523494e16a3a4910bb0f1dc75a61870b |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-14T20:47:07Z |
| publishDate | 2017-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-523494e16a3a4910bb0f1dc75a61870b2022-12-21T22:47:58ZengSpringerOpenJournal of High Energy Physics1029-84792017-08-012017813210.1007/JHEP08(2017)082Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifoldsYuji Satoh0Yuji Sugawara1Takahiro Uetoko2Institute of Physics, University of TsukubaDepartment of Physical Sciences, College of Science and Engineering, Ritsumeikan UniversityDepartment of Physical Sciences, College of Science and Engineering, Ritsumeikan UniversityAbstract We study the type II string vacua with chiral space-time SUSY constructed as asymmetric orbifolds of torus and K3 compactifications. Despite the fact that all the D-branes are non-BPS in any chiral SUSY vacua, we show that the relevant non-geometric vacua of asymmetric orbifolds allow rather generally configurations of D-branes which lead to vanishing cylinder amplitudes, implying the bose-fermi cancellation at each mass level of the open string spectrum. After working on simple models of toroidal asymmetric orbifolds, we focus on the asymmetric orbifolds of T 2 × ℳ, where ℳ is described by a general N $$ \mathcal{N} $$ = 4 SCFT with c = 6 defined by the Gepner construction for K3. Even when the modular invariant partition functions in the bulk remain unchanged, the spectra of such non-BPS D-branes with the bose-fermi cancellation can vary significantly according to the choice of orbifolding.http://link.springer.com/article/10.1007/JHEP08(2017)082Conformal Field Models in String TheoryD-branesSuperstring VacuaSuperstrings and Heterotic Strings |
| spellingShingle | Yuji Satoh Yuji Sugawara Takahiro Uetoko Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds Journal of High Energy Physics Conformal Field Models in String Theory D-branes Superstring Vacua Superstrings and Heterotic Strings |
| title | Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| title_full | Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| title_fullStr | Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| title_full_unstemmed | Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| title_short | Non-supersymmetric D-branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| title_sort | non supersymmetric d branes with vanishing cylinder amplitudes in asymmetric orbifolds |
| topic | Conformal Field Models in String Theory D-branes Superstring Vacua Superstrings and Heterotic Strings |
| url | http://link.springer.com/article/10.1007/JHEP08(2017)082 |
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