Speaker
Prof.
Jihn E. Kim
(Kyung Hee University)
Description
To interpret DE as the potential energy of the approximate U(1) dark energy
global symmetry, one must find color-anomaly free U(1). This necessarily
invites to consider U(1)de symmetry together with U(1)PQ symmetry such
that one gluon-anomaly free combination is constructed. This gives a hilltop
potential of height GUT scale energy density. Since the recent BICEP2
result forbid the hilltop inflation, the chaoton is introduced to fit to the
BICEP2 data at bull's eye. The DE symmetry, the PQ symmetry,
and the Lyth bound are described from a unified view from string derived
discrete symmetries.
Primary author
Prof.
Jihn E. Kim
(Kyung Hee University)
