Inflation during oscillations of the inflaton

Liddle, Andrew R. and Mazumdar, Anupam (1998) Inflation during oscillations of the inflaton. Physical Review D, 58 (8): 083508. ISSN 1550-7998

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Damour and Mukhanov have recently devised circumstances in which inflation may continue during the oscillatory phase which ensues once the inflaton field reaches the minimum of its potential. We confirm the existence of this phenomenon by numerical integration. In such circumstances the quantification of the amount of inflation requires particular care. We use a definition based on the decrease of the comoving Hubble length, and show that Damour and Mukhanov overestimated the amount of inflation occurring. We use the numerical calculations to check the validity of analytic approximations.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
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© 1998 The American Physical Society 5 pages RevTeX file with 5 figures incorporated using epsf
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15 May 2013 08:46
Last Modified:
15 Jul 2024 13:45