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181 | 0 | _ai | |
182 | 0 | _ab | |
200 | 1 |
_aNo inflation in type IIA strings on rigid Calabi–Yau spaces _fYu. Wakimoto, S. V. Ketov |
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203 |
_aText _celectronic |
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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 |
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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 |