122 citations · 1k across the 45 of their papers we have counts for
42 papers · 1 filter
Derivation of the NS5-brane limit of the plane wave matrix model
Yuhma Asano, Goro Ishiki, Shinji Shimasaki
From the gauge/gravity duality, it was predicted that there exists a nontrivial double scaling limit of the plane wave matrix model (the BMN matrix model), which describes the type…
Localization of the BFSS matrix model and three-point amplitude in M-theory
Yuhma Asano, Goro Ishiki, Yoshua Murayama
We apply the localization method to the BFSS matrix model with a particular class of boundary conditions, that is related to a scattering problem of 11-dimensional M-theory. For th…
Classical BPS M5-brane on the plane wave background
Yuhma Asano, Goro Ishiki, Yuto Yoshida
We consider the bosonic theory for a single M5-brane on the plane-wave background and derive a family of BPS solutions with non-zero components of the angular momentum. By explicit…
Matrix regularization for gauge theories
Hiroyuki Adachi, Goro Ishiki, Satoshi Kanno
We consider how gauge theories can be described by matrix models. Conventional matrix regularization is defined for scalar functions and is not applicable to gauge fields, which ar…
On the existence of the NS5-brane limit of the plane wave matrix model
Yuhma Asano, Goro Ishiki, Takaki Matsumoto +2
We consider a double scaling limit of the plane wave matrix model (PWMM), in which the gravity dual geometry of PWMM reduces to a class of spherical NS5-brane solutions. We identif…
Vector bundles on fuzzy Kähler manifolds
Hiroyuki Adachi, Goro Ishiki, Satoshi Kanno
We propose a matrix regularization of vector bundles over a general closed Kähler manifold. This matrix regularization is given as a natural generalization of the Berezin-Toeplitz…
Matrix regularization for tensor fields
Hiroyuki Adachi, Goro Ishiki, Satoshi Kanno +1
We propose a novel matrix regularization for tensor fields. In this regularization, tensor fields are described as rectangular matrices and both area-preserving diffeomorphisms and…
Laplacians on Fuzzy Riemann Surfaces
Hiroyuki Adachi, Goro Ishiki, Satoshi Kanno +1
We consider the matrix regularization of scalar fields on a Riemann surface with a general gauge-field background. We propose a construction of the fuzzy version of the Laplacian.
The matrix regularization for Riemann surfaces with magnetic fluxes
Hiroyuki Adachi, Goro Ishiki, Takaki Matsumoto +1
We consider the matrix regularization of fields on a Riemann surface which couple to gauge fields with a nonvanishing magnetic flux. We show that such fields are described as recta…
The null identities for boundary operators in the minimal gravity
Goro Ishiki, Hisayoshi Muraki, Chaiho Rim
By using the matrix-model representation, we show that correlation numbers of boundary changing operators (BCO) in minimal Liouville gravity satisfy some identities, whi…
Diffeomorphisms on Fuzzy Sphere
Goro Ishiki, Takaki Matsumoto
Diffeomorphisms can be seen as automorphisms of the algebra of functions. In the matrix regularization, functions on a smooth compact manifold are mapped to finite size matrices. W…
Partial Deconfinement
Masanori Hanada, Goro Ishiki, Hiromasa Watanabe
We argue that the confined and deconfined phases in gauge theories are connected by a partially deconfined phase (i.e. SU(M) in SU(N), where M<N, is deconfined), which can be stabl…
Information metric, Berry connection and Berezin-Toeplitz quantization for matrix geometry
Goro Ishiki, Takaki Matsumoto, Hisayoshi Muraki
We consider the information metric and Berry connection in the context of noncommutative matrix geometry. We propose that these objects give a new method of characterizing the fuzz…
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 transverse M5-branes from the plane wave matrix model
Yuhma Asano, Goro Ishiki, Shinji Shimasaki +1
We consider matrix theoretical description of transverse M5-branes in M-theory on the 11-dimensional maximally supersymmetric pp-wave background. We apply the localization to the p…
On the transverse M5-branes in matrix theory
Yuhma Asano, Goro Ishiki, Shinji Shimasaki +1
It has been a long-standing problem how the transverse M5-branes are described in the matrix-model formulations of M-theory. We consider this problem for M-theory on the maximally…
Supergravity from D0-brane Quantum Mechanics
Evan Berkowitz, Enrico Rinaldi, Masanori Hanada +3
The gauge/gravity duality conjecture claims the equivalence between gauge theory and superstring/M-theory. In particular, the one-dimensional gauge theory of D0-branes and type IIA…
Numerical tests of the gauge/gravity duality conjecture for D0-branes at finite temperature and finite N
Masanori Hanada, Yoshifumi Hyakutake, Goro Ishiki +1
According to the gauge/gravity duality conjecture, the thermodynamics of gauge theory describing D-branes corresponds to that of black branes in superstring theory. We test this co…
Kähler structure in the commutative limit of matrix geometry
Goro Ishiki, Takaki Matsumoto, Hisayoshi Muraki
We consider the commutative limit of matrix geometry described by a large- sequence of some Hermitian matrices. Under some assumptions, we show that the commutative geometry pos…
Matrix Geometry and Coherent States
Goro Ishiki
We propose a novel method of finding the classical limit of the matrix geometry. We define coherent states for a general matrix geometry described by a large-N sequence of D Hermit…
Emergent bubbling geometries in gauge theories with SU(2|4) symmetry
Yuhma Asano, Goro Ishiki, Shinji Shimasaki
We study the gauge/gravity duality between bubbling geometries in type IIA supergravity and gauge theories with SU(2|4) symmetry, which consist of N=4 super Yang-Mills on $R\times…
Emergent bubbling geometries in the plane wave matrix model
Yuhma Asano, Goro Ishiki, Takashi Okada +1
The gravity dual geometry of the plane wave matrix model is given by the bubbling geometry in the type IIA supergravity, which is described by an axially symmetric electrostatic sy…
Holographic description of quantum black hole on a computer
Masanori Hanada, Yoshifumi Hyakutake, Goro Ishiki +1
The discovery of the fact that black holes radiate particles and eventually evaporate led Hawking to pose the well-known information loss paradox. This paradox caused a long and se…
Direct test of the AdS/CFT correspondence by Monte Carlo studies of N=4 super Yang-Mills theory
Masazumi Honda, Goro Ishiki, Sang-Woo Kim +2
We perform nonperturbative studies of N=4 super Yang-Mills theory by Monte Carlo simulation. In particular, we calculate the correlation functions of chiral primary operators to te…