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EFT strings and emergence
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DOI：10.1007/JHEP02(2023)112.png)
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摘要
En 中文
We revisit the Emergence Proposal in 4d N = 2 vector multiplet sectors that arise from type II string Calabi-Yau compactifications, with emphasis on the role of axionic fundamental strings, or EFT strings. We focus on large-volume type IIA compactifications, where EFT strings arise from NS5-branes wrapping internal four-cycles, and consider a set of infinite-distance moduli-space limits that can be classified in terms of a scaling weight w = 1, 2, 3. It has been shown before how one-loop threshold effects of an infinite tower of BPS particles made up of D2/D0-branes generate the asymptotic behaviour of the gauge kinetic functions along limits with w = 3. We extend this result to w = 2 limits, by taking into account D2-brane multi-wrapping numbers. In w = 1 limits the leading tower involves EFT string oscillations, and one can reproduce the behaviour of both weakly and strongly coupled U(1)'s independently on whether the EFT string is critical or not, by assuming that charged modes dominate the light spectrum.
Keyword:
D-Branes
Superstring Vacua
F-Theory
M-Theory
期刊
IF:
5.5
论文数:
3.9W
被引数:
13.7W
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