8 citations · 8 across the 1 of their papers we have counts for
7 papers · 1 filter
Twist Quantization of String and B Field Background
Tsuguhiko Asakawa, Masashi Mori, Satoshi Watamura
In a previous paper, we investigated the Hopf algebra structure in string theory and gave a unified formulation of the quantization of the string and the space-time symmetry. In th…
Hopf Algebra Symmetry and String Theory
Tsuguhiko Asakawa, Masashi Mori, Satoshi Watamura
We investigate the Hopf algebra structure in string worldsheet theory and give a unified formulation of the quantization of string and the space-time symmetry. We reformulate the p…
Construction of Instantons via Tachyon Condensation
Tsuguhiko Asakawa, So Matsuura, Kazutoshi Ohta
We investigate the D-brane bound states from the viewpoint of the unstable D/\bar{D}-system and their tachyon condensation. We consider two systems; a system of k D(-1)-branes and…
Excited D-branes and Supergravity Solutions
Tsuguhiko Asakawa, Shinpei Kobayashi, So Matsuura
We investigate the general solution with the symmetry ISO(1,p)xSO(9-p) of Type II supergravity (the three-parameter solution) from the viewpoint of the superstring theory. We find…
Open String Tachyon in Supergravity Solution
Shinpei Kobayashi, Tsuguhiko Asakawa, So Matsuura
We study the tachyon condensation of the D-\bar{D}-brane system with a constant tachyon vev in the context of classical solutions of the Type II supergravity. We find that the gene…
Closed String Field Theory with Dynamical D-brane
Tsuguhiko Asakawa, Shinpei Kobayashi, So Matsuura
We consider a closed string field theory with an arbitrary matter current as a source of the closed string field. We find that the source must satisfy a constraint equation as a co…