Gravitational wave background from quintessential inflation and NANOGrav data
Das B. Jaman N. Sami M.
15 November 2023American Physical Society
Physical Review D
2023#108Issue 10
We investigate the production process of induced gravity waves due to large scalar fluctuations in the paradigm of quintessential inflation. We numerically solve the Mukhanov-Sasaki equation for different sets of parameters to obtain the power spectra. We demonstrate that the induced gravity wave signal generated in this framework can fall within the region of the NANOGrav data for chosen values of model parameters. We show that there is an allowed region of parameter space where the effect shifts to the high-frequency regime relevant to the Laser Interferometer Space Antenna and other available sensitivities.
Text of the article Перейти на текст статьи
Department of Physical Sciences, Indian Institute of Science Education and Research, Mohanpur, WB, Kolkata, 741 246, India
SGT University, Gurugram, NCR, Haryana, Delhi, 122505, India
Eurasian International Centre for Theoretical Physics, Astana, Kazakhstan
Chinese Academy of Sciences, 52 Sanlihe Road, Xicheng District, Beijing, China
Department of Physical Sciences
SGT University
Eurasian International Centre for Theoretical Physics
Chinese Academy of Sciences
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026