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15 papers · 1 filter
Numerical Evaluation of Gauge Invariants for -gauge Solutions in Open String Field Theory
Isao Kishimoto, Tomohiko Takahashi
We evaluate gauge invariants (vacuum energy and gauge invariant overlap) for numerical classical solutions in cubic open string field theory under Asano-Kato's -gauge fixing con…
Flavor structure with multi moduli in 5D SUGRA
Hiroyuki Abe, Yutaka Sakamura
We investigate 5-dimensional supergravity on S^1/Z_2 with a physical Z_2-odd vector multiplet, which yields an additional modulus other than the radion. We find additional terms in…
Free field realization of current superalgebra
Wen-Li Yang, Yao-Zhong Zhang, Xin Liu
We construct the free field representation of the affine currents, energy-momentum tensor and screening currents of the first kind of the current superalgebra uniformly…
D-brane States and Annulus Amplitudes in OSp Invariant Closed String Field Theory
Yutaka Baba, Nobuyuki Ishibashi, Koichi Murakami
In the OSp invariant closed string field theory, we construct the states corresponding to parallel D-branes that are located at different points in the space-time. Using these stat…
D-branes and Closed String Field Theory
Nobuyuki Ishibashi, Yutaka Baba, Koichi Murakami
We construct solitonic states in the OSp invariant string field theory, which are BRST invariant in the leading order of regularization parameter. One can show that these solitonic…
Schnabl's Solution and Boundary States in Open String Field Theory
Teruhiko Kawano, Isao Kishimoto, Tomohiko Takahashi
We discuss that Schnabl's solution is an off-shell extension of the boundary state describing a D-brane in the closed string sector. It gives the physical meaning of the gauge inva…