Open string multi-branched and Kähler potentials
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSADate
2016-09-12Citation
10.1007/JHEP09(2016)062
Journal of High Energy Physics 2016.9 (2016): 62
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP09(2016)062Funded by
This work has been partially supported by the grants FPA2012-32828 and FPA2015-65480-P from MINECO, SEV-2012-0249 of the “Centro de Excelencia Severo Ochoa” Programme, and the ERC Advanced Grant SPLE under contract ERC-2012-ADG-20120216-320421. F.C. is supported through a fellowship of the international programme “La Caixa-Severo Ochoa” and G.Z. is supported through a grant from “Campus Excelencia Internacional UAM+CSIC”. F. M. and G. Z. would like to thank UW-Madison for hospitality during completion of this workProject
Gobierno de España. FPA2012-32828; Gobierno de España. FPA2015-65480-P; Gobierno de España. SEV-2012-0249; info:eu-repo/grantAgreement/EC/FP7/320421Editor's Version
http://dx.doi.org/10.1007/JHEP09(2016)062Subjects
D-branes; Flux compactifications; Compactification and string models; Discrete symmetries; FísicaNote
Journal of High Energy Physics 2016.9 (2016): 062 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Rights
© 2016, The Author(s)Abstract
We consider type II string compactifications on Calabi-Yau orientifolds with fluxes and D-branes, and analyse the F-term scalar potential that simultaneously involves closed and open string modes. In type IIA models with D6-branes this potential can be directly computed by integrating out Minkowski three-forms. The result shows a multibranched structure along the space of lifted open string moduli, in which discrete shifts in special Lagrangian and Wilson line deformations are compensated by changes in the RR flux quanta. The same sort of discrete shift symmetries are present in the superpotential and constrain the Kähler potential. As for the latter, inclusion of open string moduli breaks the factorisation between complex structure and Kähler moduli spaces. Nevertheless, the 4d Kähler metrics display a set of interesting relations that allow to rederive the scalar potential analytically. Similar results hold for type IIB flux compactifications with D7- brane Wilson lines
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Google Scholar:Carta, Federico
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Marchesano, Fernando
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Staessens, Wieland
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Zoccarato, Gianluca
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