期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP07(2020)026
关键词
D-branes; Supergravity Models
We study the weak gravity conjecture, the swampland distance conjecture and the emergence proposal for N = 1 orientifold compactifications of type IIB string theory with O3-/O7-planes. We allow for orientifold projections with h+2,1 not equal 0 which gives rise to closed-string U(1) gauge fields, and our findings show that certain structures present for N = 2 compactifications are not present for N = 1. In particular, assumptions about stability have to be relaxed and we encounter an ambiguity for the emergence of gauge symmetries associated with the h+2,1 sector.
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