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Teoreticheskaya i Matematicheskaya Fizika, 2014, Volume 180, Number 1, Pages 72–85
DOI: https://doi.org/10.4213/tmf8629 (Mi tmf8629) 		 
Semiclassical analysis of pair creation in de Sitter space

S. Guts

Institute of Theoretical and Experimental Physics, Moscow, Russia
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DOI: https://doi.org/10.4213/tmf8629
Abstract: We study a massive scalar field theory in de Sitter space. Using a worldline instanton approach, we calculate the pair creation probability in the weak-field limit. In addition to the exponential factor, we derive the pre-exponential factor. In this method, the pair creation probability for an odd-dimensional space vanishes. We find the leading contribution to the two-point correlator in the $\phi^3$ theory.
Keywords: quantum field in curved space, de Sitter space.
Received: 16.12.2013
English version:
Theoretical and Mathematical Physics, 2014, Volume 180, Issue 1, Pages 815–826
DOI: https://doi.org/10.1007/s11232-014-0181-y
Bibliographic databases:
PACS: 04.62.+v; 04.60.-m
Language: Russian
Citation: S. Guts, “Semiclassical analysis of pair creation in de Sitter space”, TMF, 180:1 (2014), 72–85; Theoret. and Math. Phys., 180:1 (2014), 815–826
Citation in format AMSBIB
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    		Теоретическая и математическая физика Theoretical and Mathematical Physics
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