期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
卷 19, 期 3, 页码 329-338出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271810016440
关键词
Nonlocal cosmology
资金
- NSF [PHY0854743]
- INFN of Italy
We find nonperturbative solutions of a nonlocal scalar field equation, with cubic or exponential potential on a cosmological background. The former case corresponds to the lowest level effective tachyon action of cubic string field theory. While the well known Minkowski solution is wildly oscillating, due to Hubble friction its cosmological counterpart describes smooth rolling toward the local minimum of the potential.
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