Yuta Toyozato, Kazuharu Bamba, Shin'ichi Nojiri
By using the formulation of the reconstruction, we construct models which
have an exact solution describing the domain wall. The shape of the domain wall
can be flat, de Sitter space-time, or anti-de Sitter space-time. In the
constructed domain wall solutions, there often appears ghost with negative
kinetic energy. We give, however, an example of the de Sitter domain wall
solution without ghost, which could be a toy model of the inflation. We also
investigate the localization of the gravity as in the Randall-Sundrum model. It
is shown that the four dimensional Newton law could be reproduced even in the
de Sitter space-time domain wall solution.
View original:
http://arxiv.org/abs/1202.5375
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