Speaker
Description
We propose to discuss the modular flavor model and the stabilization of single modulus field in
the Jordan frame supergravity with non-minimal scalar-curvature coupling of the form Φ(τ, τ ¯)R.
Modular invariance and positivity of the scale factor constrain stringently the form of the frame
function, consequently the Kahler potential. We discuss some general properties of scalar potentials
after the scale transformation from the Jordan frame to the Einstein frame. We find that the shape
of the resulting scalar potential in the Einstein frame is quite different from that of ordinary single
modulus stabilization mechanism. The scalar potential could be stationary at the i∞ fixed point,
leading to a runaway type vacuum. We also discuss numerically the modulus stabilization for some
simplified scenarios.
