33 citations · 81 across the 10 of their papers we have counts for
10 papers
On open-closed extension of boundary string field theory
Akira Ishida, Shunsuke Teraguchi
We investigate a classical open-closed string field theory whose open string sector is given by boundary string field theory. The open-closed interaction is introduced by the overl…
On the general action of boundary (super)string field theory
Akira Ishida, Shunsuke Teraguchi
We reconstruct boundary superstring field theory via boundary states. After a minor modification of the fermionic two-form, all the equations needed for Batalin-Vilkovisky formulat…
Tachyon Vacuum Solution in Open String Field Theory with Constant B Field
Akira Ishida, Chanju Kim, Yoonbai Kim +2
We show that Schnabl's tachyon vacuum solution is an exact solution of the equation of motion of Witten's open bosonic string field theory in the background of constant antisymmetr…
Negative-Tension Branes and Tensionless 1/2 Brane in Boundary Conformal Field Theory
Akira Ishida, Chanju Kim, Yoonbai Kim +1
In the framework of boundary conformal field theory we consider a flat unstable D-brane in the presence of a large constant electromagnetic field. Specifically, we study the cas…
Lower Dimensional Branes in Boundary Conformal Field Theory
Akira Ishida, Yoonbai Kim, Chanju Kim +1
In the presence of constant background electromagnetic fields, we discuss three types of exactly marginal boundary tachyon operators for static kinks in boundary conformal field th…
BPS Limit of Multi- D- and DF-strings in Boundary String Field Theory
Gyungchoon Go, Akira Ishida, Yoonbai Kim
A BPS limit is systematically derived for straight multi- D- and DF-strings from the D3D3bar system in the context of boundary superstring field theory. The BPS limit is obtained i…