Fuzzy Spacetime with SU(3) Isometry in IIB Matrix Model (2005)
Kaneko, H., Kitazawa, Y., Tomino, D.
A group of fuzzy spacetime with SU(3) isometry is studied at the two loop level in IIB matrix model. It consists of spacetime from 4 to 6 dimensions, namely from CP2 to SU(3)/U(1)x U(1). The...
Stability of Fuzzy S^2 x S^2 x S^2 in IIB Type Matrix Models (2005)
Kaneko, H., Kitazawa, Y., Tomino, D.
We study the stability of fuzzy S^2 x S^2 x S^2 backgrounds in three different IIB type matrix models with respect to the change of the spins of each S^2 at the two loop level. We find that S^2 x S^2...
Wilson Line Correlators in N=4 Non-commutative Gauge Theory on S^2 x S^2 (2004)
Kitazawa, Y., Takayama, Y., Tomino, D.
We investigate the Wilson line correlators dual to supergravity multiplets in N=4 non-commutative gauge theory on S^2 x S^2. We find additional non-analytic contributions to the correlators due to...
Effective Actions of Matrix Models on Homogeneous Spaces (2003)
Imai, T., Kitazawa, Y., Takayama, Y., Tomino, D.
We evaluate the effective actions of supersymmetric matrix models on fuzzy S^2\times S^2 up to the two loop level. Remarkably it turns out to be a consistent solution of IIB matrix model. Based on...
Quantum Corrections on Fuzzy Sphere (2003)
Imai, T., Kitazawa, Y., Takayama, Y., Tomino, D.
We investigate quantum corrections in non-commutative gauge theory on fuzzy sphere. We study translation invariant models which classically favor a single fuzzy sphere with U(1) gauge group. We...
Matrix Models in Homogeneous Spaces (2002)
We investigate non-commutative gauge theories in homogeneous spaces G/H. We construct such theories by adding cubic terms to IIB matrix model which contain the structure constants of G. The isometry...
Vertex Operators in IIB Matrix Model (2002)
The vertex operators for the supergravity multiplet can be constructed through the Wilson lines in IIB matrix model. We investigate the structure of the vertex operators and the symmetry of their...
High Energy Behavior of Wilson Lines (2000)
We investigate the high energy behavior of the correlation functions of the open Wilson lines in noncommutative gauge theory. We obtain a very simple physical picture that they are bound to form a...
Supercurrent Interactions in Noncommutative Yang-Mills and IIB Matrix Model (2000)
It is known that noncommutative Yang-Mills is equivalent to IIB matrix model with a noncommutative background, which is interpreted as a twisted reduced model. In noncommutative Yang-Mills, long...
Wilson loops in strongly coupled noncommutative gauge theories (2000)
We discuss Wilson loop averages in 4-dimensional non-commutative superYang-Mills theory using the dual supergravity description. We postulate that the Wilson loops are located at the mimimum length...
String Scale in Noncommutative Yang-Mills (2000)
Ishibashi, N., Iso, S., Kawai, H., Kitazawa, Y.
We identify the effective string scale of noncommutative Yang-Mills theory (NCYM) with the noncommutativity scale through its dual supergravity description. We argue that Newton's force law may be...
Noncommutative Yang-Mills in IIB Matrix Model (1999)
Aoki, H., Ishibashi, N., Iso, S., Kawai, H., Kitazawa, Y., Tada, T.
We show that twisted reduced models can be interpreted as noncommutative Yang-Mills theory. Based upon this correspondence, we obtain noncommutative Yang-Mills theory with D-brane backgrounds in IIB...
Aoki, H., Iso, S., Kawai, H., Kitazawa, Y., Tada, T., Tsuchiya, A.
We review our proposal for a constructive definition of superstring, type IIB matrix model. The IIB matrix model is a manifestly covariant model for space-time and matter which possesses N=2...
Space-Time Structures from IIB Matrix Model (1998)
Aoki, H., Iso, S., Kawai, H., Kitazawa, Y., Tada, T.
We derive a long distance effective action for space-time coordinates from a IIB matrix model. It provides us an effective tool to study the structures of space-time. We prove the finiteness of the...
String Field Theory from IIB Matrix Model (1997)
Fukuma, M., Kawai, H., Kitazawa, Y., Tsuchiya, A.
We derive Schwinger-Dyson equations for the Wilson loops of a type IIB matrix model. Superstring coordinates are introduced through the construction of the loop space. We show that the continuum...
A Large-N Reduced Model as Superstring (1996)
Ishibashi, N, Kawai, H, Kitazawa, Y, Tsuchiya, A
A matrix model which has the manifest ten-dimensional $N=2$ super Poincare invariance is proposed. Interactions between BPS-saturated states are analyzed to show that massless spectrum is the same as...
A Large-N Reduced Model as Superstring (1996)
Ishibashi, N., Kawai, H., Kitazawa, Y., Tsuchiya, A.
A matrix model which has the manifest ten-dimensional N=2 super Poincare invariance is proposed. Interactions between BPS-saturated states are analyzed to show that massless spectrum is the same as...
Renormalizability of Quantum Gravity near Two Dimensions (1995)
Kawai, H., Kitazawa, Y., Ninomiya, M.
We study the renormalizability of quantum gravity near two dimensions. Our formalism starts with the tree action which is invariant under the volume preserving diffeomorphism. We identify the BRS...
Quantum Gravity with Boundaries near Two Dimensions (1995)
We evaluate the quantum corrections of the Einstein-Hilbert action with boundaries in the $2+\epsilon$ dimensional expansion approach. We find the Einstein-Hilbert action with boundaries to be...
Conformal Invariance and Renormalization Group in Quantum Gravity Near Two Dimensions (1994)
Aida, T., Kitazawa, Y., Kawai, H., Ninomiya, M.
We study quantum gravity in $2+\epsilon$ dimensions in such a way to preserve the volume preserving diffeomorphism invariance. In such a formulation, we prove the following trinity: the general...
Ichien, K., Yamamoto, T., Kitazawa, Y., Oguri, A., Ando, H., Kondo, Y.
AIMS—To determine whether a new, reversible thermosetting gel enhances mitomycin C transfer to target ocular tissues in the rabbit eye. METHODS—A 0.1 ml solution of mitomycin C containing...
Mochizuki, K., Jikihara, S., Ando, Y., Hori, N., Yamamoto, T., Kitazawa, Y.
AIMS/BACKGROUND—The introduction of the adjunctive use of antiproliferatives to trabeculectomy has greatly improved the success rate of this operation. Trabeculectomy with antiproliferative...
Taniguchi, T, Shimazawa, M, Araie, M, Tomita, G, Sasaoka, M, Kitazawa, Y, ...
Aim: To study optic disc topographic parameters in normal cynomolgus monkeys by Heidelberg retina tomograph (HRT).