Gauge Fixing of Modified Cubic Open Superstring Field Theory(Particles and Fields)
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The gauge-fixing problem in the modified cubic open superstring field theory is discussed in detail for both the Ramond and Neveu-Schwarz (NS) sectors in the Batalin-Vilkovisky (BV) framework. We prove for the first time that the same form of action as the classical gauge-invariant one with the ghost-number constraint on the string field relaxed, gives the master action satisfying the BV master equation. This is achieved by identifying independent component fields by analyzing the kernel structure of the inverse picture-changing operator. The explicit gauge-fixing conditions for the component fields are discussed. In a kind of b_0 = 0 gauge, we explicitly obtain an NS propagator that has poles at zeros of the Virasoro operator L_0.
- Progress of theoretical physics = Progress of theoretical physics
Progress of theoretical physics = Progress of theoretical physics 127(2), 243-270, 2012-02-25