73 citations · 370 across the 26 of their papers we have counts for
26 papers
Commutative Geometry for Non-commutative D-branes by Tachyon Condensation
Tsuguhiko Asakawa, Goro Ishiki, Takaki Matsumoto +2
There is a difficulty in defining the positions of the D-branes when the scalar fields on them are non-abelian. We show that we can use tachyon condensation to determine the positi…
Spherical D-brane by Tachyon Condensation
Tsuguhiko Asakawa, So Matsuura
We find a novel tachyon condensation which provides a D-brane system with spherical worldvolume in the flat spacetime. The tachyon profile is a deformation of a known D0-brane solu…
Gravity theory on Poisson manifold with -flux
Tsuguhiko Asakawa, Hisayoshi Muraki, Satoshi Watamura
A novel gravity theory based on Poisson Generalized Geometry is investigated. A gravity theory on a Poisson manifold equipped with a Riemannian metric is constructed from a contrav…
Topological T-duality via Lie algebroids and -flux in Poisson-generalized geometry
T. Asakawa, H. Muraki, S. Watamura
It is known that the topological T-duality exchanges and -fluxes. In this paper, we reformulate the topological T-duality as an exchange of two Lie algebroids in the general…
Poisson-generalized geometry and -flux
T. Asakawa, H. Muraki, S. Sasa +1
We study a new kind of Courant algebroid on Poisson manifolds, which is a variant of the generalized tangent bundle in the sense that the roles of tangent and the cotangent bundle…
Generalized geometry and nonlinear realization of generalized diffeomorphism on D-brane effective action
T. Asakawa, H. Muraki, S. Sasa +1
The characterization of the DBI action of a Dp-brane using the generalized geometry is discussed. It is shown that the DBI action is invariant under the diffeomorphism and B-transf…