Paradigm of warm quintessential inflation and production of relic gravity waves
Gangopadhyay M.R. Myrzakul S. Sami M. Sharma M.K.
3 February 2021American Physical Society
Physical Review D
2021#103Issue 4
We consider the framework of quintessential inflation in the warm background which is caused by the dissipation of the scalar field energy density into relativistic degrees of freedom. The dissipation process has important consequences for the evolution both at the levels of background as well as perturbation and allows us to easily satisfy the observational constraints. Our numerical analysis confirms that the model conforms to observational constraints even if the field-radiation coupling strength is weak. In the warm background, we investigate the postinflationary evolution of relic gravity waves produced during inflation whose amplitude is constrained by the big bang nucleosynthesis constraint. Further, we investigate the effect of coupling on the amplitude of gravity waves and obtain the allowed phase space between the model parameters. The mechanism of quintessential inflation gives rise to blue spectrum of gravitational wave background at high frequencies. We discuss the perspectives of detection of the signal of relic gravity waves by future proposed missions. Improvements of their sensitivities in the high frequency regime, in future, might allow us to probe the blue tilt of the spectrum caused by the presence of kinetic regime in the underlying framework of inflation.
Text of the article Перейти на текст статьи
Centre for Theoretical Physics, Jamia Millia Islamia, New Delhi, 110025, India
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics, Nur-Sultan, 010009, Kazakhstan
Center for Theoretical Physics, Eurasian National University, Nur-Sultan, 010008, Kazakhstan
Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
International Center for Cosmology, Charusat University, Anand Gujarat, 388421, India
Institute for Advanced Physics and Mathematics, Zhejiang University of Technology, Hangzhou, 310032, China
Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
Centre for Theoretical Physics
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics
Center for Theoretical Physics
Nazarbayev University
International Center for Cosmology
Institute for Advanced Physics and Mathematics
Department of Physics and Astrophysics
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026