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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…
Classical Solutions in String Field Theory Around the Tachyon Vacuum
Leonardo Rastelli, Ashoke Sen, Barton Zwiebach
In a previous paper [hep-th/0012251] we proposed a simple class of actions for string field theory around the tachyon vacuum. In this paper we search for classical solutions descri…
Test of Siegel Gauge for the Lump Solution
Partha Mukhopadhyay, Ashoke Sen
We test the validity of the Siegel gauge condition for the lump solution of cubic open bosonic string field theory by checking the equations of motion of the string field component…