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100 _a20171226a2017 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aNo inflation in type IIA strings on rigid Calabi–Yau spaces
_fYu. Wakimoto, S. V. Ketov
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 53 tit.]
330 _aWe 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.
461 _tProgress of Theoretical and Experimental Physics (PTEP)
463 _tVol. 2017, iss. 8
_v[083E02, 13 р.]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aскалярный потенциал
610 1 _aкосмологическая инфляция
700 1 _aWakimoto
_bYu.
_gYuki
701 1 _aKetov
_bS. V.
_cphysicist
_cChief Expert of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1960-
_gSergey Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36631
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра прикладной физики (№ 12) (ПФ)
_h46
_2stltpush
_3(RuTPU)RU\TPU\col\18729
801 2 _aRU
_b63413507
_c20171226
_gRCR
856 4 _uhttps://doi.org/10.1093/ptep/ptx094
942 _cCF