| 000 | 02899nlm1a2200421 4500 | ||
|---|---|---|---|
| 001 | 647860 | ||
| 005 | 20231030040817.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\13017 | ||
| 035 | _aRU\TPU\network\4389 | ||
| 090 | _a647860 | ||
| 100 | _a20160426a2015 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aGB | ||
| 135 | _adrgn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aBounce universe from string-inspired Gauss-Bonnet gravity _fK. Bamba [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 92 tit.] | ||
| 330 | _aWe explore cosmology with a bounce in Gauss-Bonnet gravity where the GaussBonnet invariant couples to a dynamical scalar field. In particular, the potential and and Gauss-Bonnet coupling function of the scalar field are reconstructed so that the cosmological bounce can be realized in the case that the scale factor has hyperbolic and exponential forms. Furthermore, we examine the relation between the bounce in the string (Jordan) and Einstein frames by using the conformal transformation between these conformal frames. It is shown that in general, the property of the bounce point in the string frame changes after the frame is moved to the Einstein frame. Moreover, it is found that at the point in the Einstein frame corresponding to the point of the cosmological bounce in the string frame, the second derivative of the scale factor has an extreme value. In addition, it is demonstrated that at the time of the cosmological bounce in the Einstein frame, there is the Gauss-Bonnet coupling function of the scalar field, although it does not exist in the string frame. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of Cosmology and Astroparticle Physics | ||
| 463 |
_tVol. 2015 _v[27 p.] _d2015 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aкосмология | |
| 610 | 1 | _aгравитация | |
| 610 | 1 | _aскалярное поле | |
| 701 | 1 |
_aBamba _bK. |
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| 701 | 1 |
_aMakarenko _bA. N. |
|
| 701 | 1 |
_aMyagky _bA. N. _cphysicist _cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences _f1976- _gAlexander Nikolayevich _2stltpush _3(RuTPU)RU\TPU\pers\34078 |
|
| 701 | 1 |
_aOdintsov _bS. D. |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра высшей математики и математической физики (ВММФ) _h139 _2stltpush _3(RuTPU)RU\TPU\col\18727 |
| 801 | 1 |
_aRU _b63413507 _c20140916 |
|
| 801 | 2 |
_aRU _b63413507 _c20200513 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1088/1475-7516/2015/04/001 | |
| 942 | _cCF | ||