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De Sitter from T-branes
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نویسنده
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Cicoli Michele ,Quevedo Fernando ,Valandro Roberto
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 3 - صفحه:1 -24
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چکیده
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Hidden sector d7-branes with non-zero gauge flux are a generic feature of type iib compactifications. a non-vanishing fayet-iliopoulos term induced by non-zero gauge flux leads to a t-brane configuration. expanding the d7-brane action around this t-brane background in the presence of three-form supersymmetry breaking fluxes, we obtain a positive definite contribution to the moduli scalar potential which can be used as an uplifting source for de sitter vacua. in this way we provide a higher-dimensional understanding of known 4d mechanisms of de sitter uplifting based on hidden sector f-terms which are non-zero because of d-term stabilisation.
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کلیدواژه
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Superstring Vacua ,D-branes ,F-Theory ,Flux compactifications
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آدرس
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Università di Bologna, Dipartimento di Fisica e Astronomia, Italy. INFN, Sezione di Bologna, Italy. ICTP, Italy, ICTP, Italy. Centre for Mathematical Sciences, UK, Università di Trieste, Dipartimento di Fisica, Italy. INFN, Sezione di Trieste, Italy. ICTP, Italy
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Authors
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