Narain, K.S.; Zein Assi, Ahmad (2019). The decoupling of Ω¯ in string theory. Nuclear physics B, 938, pp. 762-774. Elsevier 10.1016/j.nuclphysb.2018.12.013
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In this note, we study the deformation of the topological string by Ω¯. Namely, adopting the perturbative string amplitudes approach, we identify the Ω¯-deformation in terms of a physical state in the sting spectrum. We calculate the topological amplitudes Fg in heterotic string theory in the presence of the latter. In partic-ular, we show that it is crucial to include quadratic terms in the effective action in order for Ω¯ to decouple. It turns out that this decoupling happens at the full string level, suggesting that this holds non-perturbatively.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Zein Assi, Ahmad |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0550-3213 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
05 Nov 2019 09:24 |
Last Modified: |
05 Dec 2022 15:31 |
Publisher DOI: |
10.1016/j.nuclphysb.2018.12.013 |
ArXiv ID: |
1807.11432 |
BORIS DOI: |
10.7892/boris.134382 |
URI: |
https://boris.unibe.ch/id/eprint/134382 |
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