Quantum kinetics and prethermalization of Hawking radiation

Дата и время публикации : 2012-05-02T20:00:43Z

Авторы публикации и институты :
Dmitry Podolsky
Eric Greenwood
Glenn Starkman

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 26 pages, 5 figures
Первичная категория: hep-th

Все категории : hep-th, astro-ph.CO, astro-ph.HE, gr-qc

Краткий обзор статьи: We reinvestigate the emission of Hawking radiation during gravitational collapse to a black hole. Both CGHS collapse of a shock wave in (1+1)-dimensional dilaton gravity and Schwarzschild collapse of a spherically symmetric thin shell in (3+1)-dimensional gravity are considered. Studying the dynamics of in-vacuum polarization, we find that a multi-parametric family of out-vacua exists. Initial conditions for the collapse lead dynamically to different vacua from this family as the final state. Therefore, the form of the out-vacuum encodes memory about the initial quantum state of the system. While most out-vacua feature a non-thermal Hawking flux and are expected to decay quickly, there also exists a thermal vacuum state. Collectively, these observations suggest an interesting possible resolution of the information loss paradox.

Category: Physics