Moduli Thermalization and Finite Temperature Effects in "Big" Divisor Large Volume D3/D7 Swiss-Cheese Compactification

TL;DR

This paper investigates moduli stabilization and thermal effects in a specific large volume Swiss-Cheese compactification with D3 and D7-branes, showing stability of the scalar potential and avoiding cosmological moduli problems.

Contribution

It demonstrates the stability of the zero-temperature scalar potential against finite temperature corrections and shows moduli are sufficiently heavy to prevent cosmological issues.

Findings

Zero-temperature potential remains stable at finite temperatures.

Moduli are heavy enough to avoid cosmological moduli problems.

Thermalization of MSSM-like matter fields is feasible.

Abstract

In the context of Type IIB compactified on a large volume Swiss-Cheese orientifold in the presence of a mobile space-time filling D3-brane and stacks of fluxed D7-branes wrapping the "big" divisor Sigma_B of a Swiss-Cheese Calabi Yau in WCP^4 [1,1,1,6,9], we explore various implications of moduli dynamics and discuss their couplings and decay into MSSM (-like) matter fields early in the history of universe to reach thermal equilibrium. Like finite temperature effects in O'KKLT, we observe that the local minimum of zero-temperature effective scalar potential is stable against any finite temperature corrections (up to two-loops) in large volume scenarios as well. Also, we find that moduli are heavy enough to avoid any cosmological moduli problem.