Topological G 2 and Spin(7) strings at 1-loop from double complexes
Ashmore, Anthony, Coimbra, André, Strickland-Constable, Charles, Svanes, Eirik Eik and Tennyson, David
(2022)
Topological G 2 and Spin(7) strings at 1-loop from double complexes.
Journal of High Energy Physics (JHEP), 2022 (2): 89.
ISSN 1126-6708
We study the topological G2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry. The 1-loop partition function then has a target-space interpretation as a particular alternating product of determinants of Laplacians, which we have dubbed the analytic torsion. In the case without flux where these backgrounds have special holonomy, we reproduce the worldsheet calculation of the G2 string and give a new prediction for the Spin(7) string. We also comment on connections with topological strings on Calabi-Yau and K3 backgrounds.
Item Type | Article |
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Additional information | © The Authors. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), https://creativecommons.org/licenses/by/4.0/ |
Keywords | regular article - theoretical physics, differential and algebraic geometry, flux compactifications, topological strings, superstring vacua |
Date Deposited | 15 May 2025 14:55 |
Last Modified | 04 Jun 2025 21:20 |