NON-LOCAL INFLATION AROUND A LOCAL MAXIMUM
2008 ◽
Vol 17
(03n04)
◽
pp. 577-582
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Keyword(s):
It is shown that non-local, higher-derivative operators, which arise generically in string field theory, can act as additional sources of friction on the inflaton field as it rolls away from a maximum in its potential. Moreover, the cosmic dynamics can be quantified in terms of a local field theory, where the curvature of an effective potential has been suppressed. A prolonged phase of quasi-exponential expansion can therefore be realised with steep potentials that typically arise in particle physics models. We illustrate this effect within the context of p-adic string theory.
1970 ◽
Vol 43
(4)
◽
pp. 1050-1070
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1991 ◽
Vol 06
(11)
◽
pp. 1011-1021
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Keyword(s):
1969 ◽
Vol 41
(5)
◽
pp. 1352-1365
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