A Cosmological Solution with Acceleration Caused by an Annihilation Shock Wave
- Авторлар: Golubiatnikov A.1, Lyuboshits D.1
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Мекемелер:
- Institute of Mechanics
- Шығарылым: Том 25, № 2 (2019)
- Беттер: 131-137
- Бөлім: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176300
- DOI: https://doi.org/10.1134/S0202289319020087
- ID: 176300
Дәйексөз келтіру
Аннотация
A discontinuous spherically symmetric solution of the Einstein equations is found, containing an annihilation shock wave. Before the shock wave, there occurs a parabolic (with zero speed at infinity) compression of dust consisting of particles and antiparticles, which is glued on the wave of complete annihilation of antiparticles with hyperbolic expansion of a gas with an extremely stiff equation of state. Specifically, in contrast to the Friedmann homogeneous expansion. the solution behind the shock wave has a nonzero pressure gradient associated with acceleration of the continuum. Estimates are given for the parameters related to the stage of baryon-antibaryon annihilation at formation of the Universe.
Авторлар туралы
A. Golubiatnikov
Institute of Mechanics
Email: daniilll@yandex.ru
Ресей, Moscow
D. Lyuboshits
Institute of Mechanics
Хат алмасуға жауапты Автор.
Email: daniilll@yandex.ru
Ресей, Moscow