Reheating in inflation models with the inflaton decaying into radiation

被引：8

作者：

Zhang, Feng-Yi

Wu, Puxun ^{[1
]}

Yu, Hongwei ^{[1
]}

机构：

[1] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

来源：

PHYSICAL REVIEW D | 2021年 / 104卷 / 10期

关键词：

PARTICLE-PRODUCTION; UNIVERSE SCENARIO; FLUCTUATIONS; COSMOLOGY; DYNAMICS; FLATNESS; HORIZON;

D O I：

10.1103/PhysRevD.104.103530

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The physics of reheating can provide additional predictions for inflationary models and thus has spurred an increasing deal of interest. In this paper, by considering a special function for the decay of the inflaton into radiation, which renders the effective equation of state (EoS) parameter to be time varying during reheating, we investigate the constraints on reheating from the cosmic microwave background observations and the effect of reheating on the predictions for inflationary models. Our work is different from previous ones where a constant EoS parameter is assumed. Taking the power-law inflationary models as concrete examples, we find that the time-varying EoS parameter during reheating entails a non-negligible effect on the reheating predictions.

引用

页数：8

共 57 条

[1] PARTICLE-PRODUCTION IN THE NEW INFLATIONARY COSMOLOGY [J].

ABBOTT, LF ;

FARHI, E ;

WISE, MB .

PHYSICS LETTERS B, 1982, 117 (1-2) :29-33

[2] Planck 2018 results: X. Constraints on inflation [J].

Akrami, Y. ;

Arroja, F. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Contreras, D. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Donzelli, S. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fergusson, J. .

ASTRONOMY & ASTROPHYSICS, 2020, 641 (641)

[3] COSMOLOGY FOR GRAND UNIFIED THEORIES WITH RADIATIVELY INDUCED SYMMETRY-BREAKING [J].

ALBRECHT, A ;

STEINHARDT, PJ .

PHYSICAL REVIEW LETTERS, 1982, 48 (17) :1220-1223

[4] REHEATING AN INFLATIONARY UNIVERSE [J].

ALBRECHT, A ;

STEINHARDT, PJ ;

TURNER, MS ;

WILCZEK, F .

PHYSICAL REVIEW LETTERS, 1982, 48 (20) :1437-1440

[5] Nonperturbative dynamics of reheating after inflation: A review [J].

Amin, Mustafa A. ;

Hertzberg, Mark P. ;

Kaiser, David I. ;

Karouby, Johanna .

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2015, 24 (01)

[6] SPONTANEOUS CREATION OF ALMOST SCALE-FREE DENSITY PERTURBATIONS IN AN INFLATIONARY UNIVERSE [J].

BARDEEN, JM ;

STEINHARDT, PJ ;

TURNER, MS .

PHYSICAL REVIEW D, 1983, 28 (04) :679-693

[7] Inflation dynamics and reheating [J].

Bassett, Bruce A. ;

Tsujikawa, Shinji ;

Wands, David .

REVIEWS OF MODERN PHYSICS, 2006, 78 (02) :537-589

[8] Constrains on Kahler moduli inflation from reheating [J].

Bhattacharya, Sukannya ;

Dutta, Koushik ;

Maharana, Anshuman .

PHYSICAL REVIEW D, 2017, 96 (08)

[9] Reheating phase diagram for single-field slow-roll inflationary models [J].

Cai, Rong-Gen ;

Guo, Zong-Kuan ;

Wang, Shao-Jiang .

PHYSICAL REVIEW D, 2015, 92 (06)

[10] Reheating predictions in single field inflation [J].

Cook, Jessica L. ;

Dimastrogiovanni, Emanuela ;

Easson, Damien A. ;

Krauss, Lawrence M. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2015, (04)

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