No inflation in type IIA strings on rigid Calabi–Yau spaces; Progress of Theoretical and Experimental Physics (PTEP); Vol. 2017, iss. 8

Bibliografiske detaljer
Parent link:Progress of Theoretical and Experimental Physics (PTEP)
Vol. 2017, iss. 8.— 2017.— [083E02, 13 р.]
Hovedforfatter: Wakimoto Yu. Yuki
Institution som forfatter: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра прикладной физики (№ 12) (ПФ)
Andre forfattere: Ketov S. V. Sergey Vladimirovich
Summary:Title screen
We investigate whether cosmological inflation is possible in a class of flux compactifications of type IIA strings on rigid Calabi-Yau manifolds, when all perturbative string corrections are taken into account. We confine ourselves to the universal hypermultiplet and an Abelian vector multiplet, representing matter in four dimensions. Since all axions can be stabilized by D-instantons, we choose the dilaton and a Kähler modulus as the only running scalars. Though positivity of their scalar potential can be achieved, we find that there is no slow roll (ε>13/6ε>13/6), and no graceful exit because the scalar potential has the runaway behavior resulting in decompactification. We conclude that it is impossible to generate phenomenologically viable inflation in the given class of flux compactifications of type IIA strings without explicit breaking of the N=2N=2 local supersymmetry of the low-energy effective action.
Sprog:engelsk
Udgivet: 2017
Fag:
Online adgang:https://doi.org/10.1093/ptep/ptx094
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657032

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