Spontaneously Broken Space-Time Supersymmetry in Open String Theory without GSO Projection
نویسنده
چکیده
We argue that orientable open string theory without GSO projection has N=2 spacetime supersymmetry in a spontaneously broken phase. The arguments are presented both in Neveu-Schwarz-Ramond and Green-Schwarz formulations. The formal but explicit supersymmetry transformation law for string field is given in the framework of Witten’s open string field theory. Our results support a fundamental assumption which lies behind the topological construction of stable D-branes starting from the unstable systems of D9-branes. ∗ e-mail address: [email protected]
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تاریخ انتشار 2000