Type-I strings on magnetised orbifolds and brane transmutation
Type-I strings on magnetised orbifolds and brane transmutation
复制标题
磁化轨道折叠和膜嬗变中的 I 型弦
DOI:
10.1016/s0370-2693(00)00907-2
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发表时间:
2000
影响因子:
4.4
通讯作者:
A. Sagnotti
中科院分区:
文献类型:
--
作者:
C. Angelantonj;I. Antoniadis;E. Dudas;A. Sagnotti
In the presence of internal magnetic fields, a D9 brane can acquire a D5 (or anti-D5) R-R charge, and can therefore contribute to the corresponding tadpole. In the resulting vacua, supersymmetry is generically broken and tachyonic instabilities are present. However, suitable choices for the magnetic fields, corresponding to self-dual configurations in the internal space, can yield new chiral supersymmetric vacua with gauge groups of reduced rank, where the magnetic energy saturates, partly or fully, the negative tension of the O5+planes. These models contain Green–Schwarz couplings to untwisted R-R forms not present in conventional orientifolds.