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arXiv · 2505.15305

Vacuum Tunneling from Conifold Transitions in IIB

Xin Gao·Qinjian Lou·Yi-Nan Wang
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Abstract

We investigate the quantum tunneling process through a topology transition near a conifold singularity, in the setup of IIB CY3 orientifold compactification. We propose a novel method to do moduli stabilization in an extended moduli space, parametrized by both the geometric moduli and the light D3-brane wrapping modes arisen from the brane quantization. Assuming the absence of flux through the vanishing exceptional 3-cycle, we find two types of vacuum solutions, one corresponds to the resolved conifold and the other one is interpreted as a novel non-geometric phase. We compute the quantum tunneling rate between these two solutions and find that it is difficult to achieve a significantly large tunneling rate in the controllable regime.

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Xin Gao, Qinjian Lou, Yi-Nan Wang. 2025-05-21. Vacuum Tunneling from Conifold Transitions in IIB. https://arxiv.org/abs/2505.15305

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