| 000 | 02556nab a2200337 c 4500 | ||
|---|---|---|---|
| 001 | vtls000527860 | ||
| 003 | RU-ToGU | ||
| 005 | 20210907024156.0 | ||
| 007 | cr | | ||
| 008 | 181202|2015 enk s a eng dd | ||
| 024 | 7 |
_a10.1088/1475-7516/2015/04/001 _2doi |
|
| 035 | _ato000527860 | ||
| 040 |
_aRU-ToGU _brus _cRU-ToGU |
||
| 245 | 1 | 0 |
_aBounce universe from string-inspired Gauss-Bonnet gravity _cK. Bamba, A. N. Makarenko, A. N. Myagky, S. D. Odintsov |
| 504 | _aБиблиогр.: 92 назв. | ||
| 520 | 3 | _aWe explore cosmology with a bounce in Gauss-Bonnet gravity where the Gauss-Bonnet 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. | |
| 653 | _aВселенная | ||
| 653 | _aГаусса-Бонне гравитация | ||
| 653 | _aтемная энергия | ||
| 655 | 4 |
_aстатьи в журналах _9681159 |
|
| 700 | 1 |
_aBamba, Kazuharu _9360059 |
|
| 700 | 1 |
_aMyagky, Aleksandr N. _9439524 |
|
| 700 | 1 |
_aOdintsov, Sergey Dmitrievich _9340459 |
|
| 700 | 1 |
_aMakarenko, Andrey N. _996608 |
|
| 710 | 2 |
_aТомский государственный университет _bФизико-технический факультет _bНаучные подразделения ФТФ _9183021 |
|
| 773 | 0 |
_tJournal of cosmology and astroparticle physics _d2015 _gVol. 4. P. 001 (1-27) _x1475-7516 |
|
| 852 | 4 | _aRU-ToGU | |
| 856 | 7 | _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000527860 | |
| 908 | _aстатья | ||
| 999 | _c389187 | ||