Type-I strings on magnetised orbifolds and brane transmutation

Type-I strings on magnetised orbifolds and brane transmutation
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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
期刊:
影响因子:
4.4
通讯作者:
A. Sagnotti
A. Sagnotti
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
C. Angelantonj;I. Antoniadis;E. Dudas;A. Sagnotti

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在内部磁场存在的情况下,D9膜可以获得D5(或反D5) R-R电荷,因此可以贡献给相应的蝌蚪。在由此产生的真空中,超对称被普遍打破,并且存在速速不稳定性。然而,适当的磁场选择,对应于内部空间的自对偶构型,可以产生具有降秩规范群的新的手性超对称真空,其中磁能部分或全部饱和于O5+平面的负张力。这些模型包含格林-施瓦茨耦合到常规定向褶皱中不存在的非扭曲R-R形式。
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.