D-instanton, threshold corrections, and topological string
Jan 9, 202318 pages
Published in:
- JHEP 05 (2023) 097
- Published: May 12, 2023
e-Print:
- 2301.03602 [hep-th]
Report number:
- MIT-CTP/5518
View in:
Citations per year
Abstract: (Springer)
In this note, we prove that the one-loop pfaffian of the non-perturbative superpotential generated by Euclidean D-branes in type II compactifications on orientifolds of Calabi-Yau threefolds is determined by the moduli integral of the new supersymmetric index defined by Cecotti, Fendley, Intriligator, and Vafa. As this quantity can be computed via topological string theory, Chern-Simons theory, matrix models, or by solving the holomorphic anomaly equation, this result provides a method to directly compute the one-loop pfaffian of the non-perturbative superpotential. The relation between the one-loop pfaffian, threshold corrections to the gauge coupling, and the one-loop partition function of open topological string theory is discussed.Note:
- v2: 17 pages. Typos fixed. References added. Some discussions expanded. v3: 18 pages. References added. v4: matches jhep version
- D-Branes
- String and Brane Phenomenology
- Superstring Vacua
- string model: topological
- threshold: correction
- superpotential: nonperturbative
- orientifold: Calabi-Yau
- coupling: gauge
- string: topological
- partition function
References(64)
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