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Fixing an Ambiguity in Two Dimensional String Theory Using String Field Theory
Ashoke Sen
In a recent paper, Balthazar, Rodriguez and Yin found some remarkable agreement between the results of c=1 matrix model and D-instanton corrections in two dimensional string theory…
Superstring Field Theory with Open and Closed Strings
Seyed Faroogh Moosavian, Ashoke Sen, Mritunjay Verma
We construct Lorentz invariant and gauge invariant 1PI effective action for closed and open superstrings and demonstrate that it satisfies the classical BV master equation. We also…
Self-dual forms: Action, Hamiltonian and Compactification
Ashoke Sen
It has been shown that, by adding an extra free field that decouples from the dynamics, one can construct actions for interacting 2n-form fields with self-dual field strengths in 4…
String Field Theory as World-sheet UV Regulator
Ashoke Sen
Even at tree level, the first quantized string theory suffers from apparent short distance singularities associated with collision of vertex operators that prevent us from straight…