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arXiv 0801.0762hep-th
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非超对称Seiberg对偶、Orientifold QCD与非临界弦

Non-Supersymmetric Seiberg Duality, Orientifold QCD and Non-Critical Strings

Adi Armoni, Dan Israel, Gregory Moraitis, Vasilis Niarchos

摘要:

对于一类非超对称U(N_c)规范理论,提出了一种电磁对偶性,并猜想了一个精确的共形窗,其中U(N_c)的费米子是规范群的(反对称)表示,N_f是附加的标量和费米子味.该对偶将N_c与N_f -N_c \mp 4交换,而N_f不变,并且与SU或SO/Sp规范群的N=1 SQCD中的Seiberg对偶具有共同的性质。当N较大时,由于N=1 SQCD的平面等价性,对偶成立。在有限的N,我们嵌入这些规范理论的D-膜和orientifolds在一个非超对称的,但快子自由,非临界型0 B弦论理论的设置,并主张在类似的超对称情况下的边界和crosscap状态monodromies方面的对偶性。可以明确地验证所得到的异常具有匹配的全局异常。最后,我们评论这些规范理论的模空间,并讨论其他潜在的非超对称的例子,可以表现出类似的对偶。

英文摘要:

We propose an electric-magnetic duality and conjecture an exact conformal window for a class of non-supersymmetric U(N_c) gauge theories with fermions in the (anti)symmetric representation of the gauge group and N_f additional scalar and fermion flavors. The duality exchanges N_c with N_f -N_c \mp 4 leaving N_f invariant, and has common features with Seiberg duality in N=1 SQCD with SU or SO/Sp gauge group. At large N the duality holds due to planar equivalence with N=1 SQCD. At finite N we embed these gauge theories in a setup with D-branes and orientifolds in a non-supersymmetric, but tachyon-free, non-critical type 0B string theory and argue in favor of the duality in terms of boundary and crosscap state monodromies as in analogous supersymmetric situations. One can verify explicitly that the resulting duals have matching global anomalies. Finally, we comment on the moduli space of these gauge theories and discuss other potential non-supersymmetric examples that could exhibit similar dualities.

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