Topics In Large Volume Swiss-Cheese Compactification
Year: 2011
Type: preprint
Abstract: In this review article, we present a systematic study of large volume type IIB string compactifications that addresses several interesting issues in string cosmology and string phenomenology within a single string compactification scheme. In the con- text of string cosmology, with the inclusion of perturbative and non-perturbative α ' corrections to the Kahler potential and instanton generated superpotential (without the inclusion of D3/D7-branes), we discuss the issues like obtaining a metastable non-supersymmetric dS minimum without adding anti-D3 brane and obtaining slow roll inflation with the required number of 60 e-foldings along with non-trivial non- Gaussianities and gravitational waves. For studying cosmology and phenomenology within a single string compactification scheme, we provide a geometric resolution to a long-standing tension between LVS cosmology and LVS phenomenology after incor- porating the effect of a single mobile spacetime-filling D3-brane and stacks of fluxed D7-branes wrapping the big divisor of a Swiss-Cheese CY. Using GLSM tech- niques and the toric data for the Swiss-Cheese CY, we calculate geometric Kahler potential in LVS limit which are subdominant as compared to the tree level and
Source: arXiv (Cornell University)
Author: Pramod Shukla
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2187259179