The string geometry behind topological amplitudes

Angelantonj, Carlo; Antoniadis, Ignatios (2020). The string geometry behind topological amplitudes. Journal of High Energy Physics, 2020(1), 005. Springer 10.1007/JHEP01(2020)005

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It is shown that the generating function of N = 2 topological strings, in the heterotic weak coupling limit, is identified with the partition function of a six-dimensional Melvin background. This background, which corresponds to an exact CFT, realises in string theory the six-dimensional Ω-background of Nekrasov, in the case of opposite deformation parameters ǫ1 = −ǫ2, thus providing the known perturbative part of the Nekrasov partition function in the field theory limit. The analysis is performed on both heterotic and type I strings and for the cases of ordinary N = 2 and N = 2∗ theories.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Antoniadis, Ignatios

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

31 Jan 2020 13:42

Last Modified:

31 Jan 2020 13:42

Publisher DOI:

10.1007/JHEP01(2020)005

ArXiv ID:

1910.03347

BORIS DOI:

10.7892/boris.139623

URI:

https://boris.unibe.ch/id/eprint/139623

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