{"title":"具有d -膜的不对称轨道的一个模型","authors":"Motoharu Ito, T. Sakai","doi":"10.1143/PTP.127.819","DOIUrl":null,"url":null,"abstract":"We consider an orientifold model of IIB string compactified on a six-dimensional torus on the basis of an asymmetric orbifold. A careful study of the T-duality group shows that there exists a discrete Z3 × Z3 symmetry that acts on the string worldsheet asymmetrically by choosing an appropriate configuration of T . This torus is nonfactorizable and has a metric proportional to the Cartan matrix of the E6 group. The open string sector is constructed from D9-branes with some magnetic fluxes turned on along T 6 in such a way that the Dbrane system is consistent with Z3 × Z3. By solving the RR-tadpole condition, we obtain a consistent string model with a gauge group SO(4).","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"127 1","pages":"819-830"},"PeriodicalIF":0.0000,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.127.819","citationCount":"0","resultStr":"{\"title\":\"A Model of Asymmetric Orbifold with D-Branes\",\"authors\":\"Motoharu Ito, T. Sakai\",\"doi\":\"10.1143/PTP.127.819\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We consider an orientifold model of IIB string compactified on a six-dimensional torus on the basis of an asymmetric orbifold. A careful study of the T-duality group shows that there exists a discrete Z3 × Z3 symmetry that acts on the string worldsheet asymmetrically by choosing an appropriate configuration of T . This torus is nonfactorizable and has a metric proportional to the Cartan matrix of the E6 group. The open string sector is constructed from D9-branes with some magnetic fluxes turned on along T 6 in such a way that the Dbrane system is consistent with Z3 × Z3. By solving the RR-tadpole condition, we obtain a consistent string model with a gauge group SO(4).\",\"PeriodicalId\":49658,\"journal\":{\"name\":\"Progress of Theoretical Physics\",\"volume\":\"127 1\",\"pages\":\"819-830\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1143/PTP.127.819\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress of Theoretical Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1143/PTP.127.819\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress of Theoretical Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1143/PTP.127.819","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We consider an orientifold model of IIB string compactified on a six-dimensional torus on the basis of an asymmetric orbifold. A careful study of the T-duality group shows that there exists a discrete Z3 × Z3 symmetry that acts on the string worldsheet asymmetrically by choosing an appropriate configuration of T . This torus is nonfactorizable and has a metric proportional to the Cartan matrix of the E6 group. The open string sector is constructed from D9-branes with some magnetic fluxes turned on along T 6 in such a way that the Dbrane system is consistent with Z3 × Z3. By solving the RR-tadpole condition, we obtain a consistent string model with a gauge group SO(4).
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