Dynamics of a Scalar Field along a Flat Direction in de Sitter Space

Details Dynamics of a Scalar Field along a Flat Direction in de Sitter Space Dynamics of a Scalar Field along a Flat Direction in de Sitter Space

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pthph..92.1105t&link_type=abstract

Progress of Theoretical Physics, Vol. 92, No. 6, pp. 1105-1117.

Physics

2

Scientific paper

We compute the one-loop effective action of a scalar field φ along a flat direction in de Sitter space using the derivative expansion method. It is found that this scalar field rolls down the potential away from the origin if the initial value of a scalar field φ is much larger than the Hubble constant. We also see that this dynamics supports the Affleck-Dine mechanism for baryogenesis.

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