Particle production in matrix cosmology

Das, Sumit R. ; Davis, Joshua L. ; Larsen, Finn ; Mukhopadhyay, Partha (2004) Particle production in matrix cosmology Physical Review D, 70 (4). 044017_1-044017_11. ISSN 0556-2821

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We consider cosmological particle production in 1+1 dimensional string theory. The process is described most efficiently in terms of anomalies, but we also discuss the explicit mode expansions. In matrix cosmology the usual vacuum ambiguity of quantum fields in time-dependent backgrounds is resolved by the underlying matrix model. This leads to a finite energy density for the "in" state which cancels the effect of anomalous particle production.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:8733
Deposited On:28 Oct 2010 05:42
Last Modified:16 May 2016 18:40

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