Orientifolds, Unoriented Instantons and Localization
Duiliu-Emanuel Diaconescu, Bogdan Florea, Aalok Misra
TL;DR
This paper develops a localization method to exactly compute unoriented closed string topological amplitudes in N=1 string orientifolds of noncompact toric Calabi-Yau threefolds, confirming mirror symmetry and large N duality predictions.
Contribution
It introduces a localization approach for calculating world-sheet instanton effects in orientifold string theories, aligning with mirror symmetry and duality results.
Findings
Exact computation of unoriented closed string amplitudes
Agreement with mirror symmetry predictions
Confirmation of large N duality in this context
Abstract
We consider world-sheet instanton effects in N=1 string orientifolds of noncompact toric Calabi-Yau threefolds. We show that unoriented closed string topological amplitudes can be exactly computed using localization techniques for holomorphic maps with involution. Our results are in precise agreement with mirror symmetry and large N duality predictions.
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