Type IIB Conifold Transitions in Cosmology

Abstract

We study four-dimensional low energy effective actions for conifold transitions of Calabi-Yau spaces in the context of IIB supergravity. The actions are constucted by examining the mass of D3-branes wrapped on collapsing/expanding three-cycles. We then study the cosmology of the conifold transition, including consequences for moduli stabilization, taking into account the effect of the additional states which become light at the transition. We find, the degree to which the additional states are excited is essential for whether the transition is dynamically realized.

Corrected prepotential and expanded discussions

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Cited by in corpus (16)

• String Gas Cosmology
• Things Fall Apart: Topology Change from Winding Tachyons
• Membrane Instantons and de Sitter Vacua
• Cosmological Moduli Dynamics
• Time-Dependent Supersymmetric Solutions in M-Theory and the Compactification-Decompactification Transition
• Brane Inflation, Solitons and Cosmological Solutions: I
• Transitions Between Flux Vacua
• Conifold Cosmologies in IIA String Theory
• Jumping Spectra and Vanishing Couplings in Heterotic Line Bundle Standard Models
• Aspects of moduli stabilisation in string and M-theory
• On the chaos of D-brane phase transitions
• The Dynamics of Small Instanton Phase Transitions
• The effects of inhomogeneities on the cosmology of type IIB conifold transitions
• The evolution of conifolds
• Singular manifolds, topology change and the dynamics of compactification
• The gravitational dynamics of warped throats