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Star Algebra Spectroscopy
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
The spectrum of the infinite dimensional Neumann matrices M^{11}, M^{12} and M^{21} in the oscillator construction of the three-string vertex determines key properties of the star…
A Note on a Proposal for the Tachyon State in Vacuum String Field Theory
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
We discuss the proposal of Hata and Kawano for the tachyon fluctuation around a solution of vacuum string field theory representing a D25 brane. We give a conformal field theory co…
Ghost Structure and Closed Strings in Vacuum String Field Theory
Davide Gaiotto, Leonardo Rastelli, Ashoke Sen +1
We complete the construction of vacuum string field theory by proposing a canonical choice of ghost kinetic term -- a local insertion of the ghost field at the string midpoint with…
Vacuum String Field Theory
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
This is a brief review of vacuum string field theory, a new approach to open string field theory based on the stable vacuum of the tachyon. We discuss the sliver state explaining i…
Boundary CFT Construction of D-branes in Vacuum String Field Theory
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
In previous papers we built (multiple) D-branes in flat space-time as classical solutions of the string field theory based on the tachyon vacuum. In this paper we construct classic…
Half-strings, Projectors, and Multiple D-branes in Vacuum String Field Theory
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
A sliver state is a classical solution of the string field theory of the tachyon vacuum that represents a background with a single D25-brane. We show that the sliver wavefunctional…