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001			648000
005			20231030040821.0
035			_a(RuTPU)RU\TPU\network\13157
035			_aRU\TPU\network\1870
090			_a648000
100			_a20160504a2016 k y0engy50 ba
101	0		_aeng
102			_aDE
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aStarobinsky-like two-field inflation _fS. Kaneda, S. V. Ketov
203			_aText _celectronic
300			_aTitle screen
320			_a[Reference: 40 tit.]
330			_aWe consider an extension of the Starobinsky model, whose parameters are functions of an extra scalar field. Our motivation is to test the robustness (or sensitivity) of the Starobinsky inflation against mixing scalaron with another (matter) scalar field. We find that the extended Starobinsky model is (classically) equivalent to the two-field inflation, with the scalar potential having a flat direction. For the sake of fully explicit calculations, we perform a numerical scan of the parameter space. Our findings support the viability of the Starobinsky-like two-field inflation for a certain range of its parameters, which is characterized by the scalar index ns=0.96±0.01ns=0.96±0.01, the tensor-to-scalar ratio r<0.06r<0.06, and a small running of the scalar index at |αs|<0.05|αs|<0.05.
333			_aРежим доступа: по договору с организацией-держателем ресурса
461			_tEuropean Physical Journal C _oScientific Journal
463			_tVol. 76, iss. 1 _v[14 р.] _d2016
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
700		1	_aKaneda _bS. _gSho
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 _c20160504 _gRCR
856	4		_uhttp://dx.doi.org/10.1140/epjc/s10052-016-3888-0
942			_cCF