Tunneling/WKB and anomaly methods for Rindler and de sitter space-times

Autor:	Douglas Singleton, A. de Gill, Terry Pilling, Valeriya Eduardovna Akhmedova
Rok vydání:	2010
Předmět:	Physics De Sitter space Statistical and Nonlinear Physics WKB approximation General Relativity and Quantum Cosmology Rindler coordinates Unruh effect De Sitter universe Quantum mechanics Anomaly (physics) Mathematical Physics Gravitational anomaly Mathematical physics Hawking radiation
Zdroj:	Theoretical and Mathematical Physics. 163:774-781
ISSN:	1573-9333 0040-5779
DOI:	10.1007/s11232-010-0061-z
Popis:	We consider the WKB/tunneling method explicitly in the context of its application to the Rindler and de Sitter space-times. We also present two gravitational anomaly methods (consistent and covariant). The anomaly methods applied to the Rindler space-time do not reproduce the expected Unruh radiation, because the Rindler space-time does not have an anomaly. The consistent and the covariant anomaly methods give different results for the de Sitter space-time. In contrast to them, the WKB/tunneling method is a semiclassical calculation in which the radiation is regarded as a tunneling of quantum fields across the horizon. The tunneling method is applicable in all the indicated cases. But to recover the correct Gibbons-Hawking temperature, a previously overlooked temporal piece that contributes to the total action must be taken into account.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61167974cb8509d09cd7ccafc21a39d9 https://doi.org/10.1007/s11232-010-0061-z Zobrazit plný text záznamu Plný text ve formátu PDF