Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S. Hashimoto2 profiles208 · h 43
- S. Aoki4 profiles177 · h 50
- Y. Kuramashi128 · h 46
- A. Ukawa126 · h 45
- M. Okawa2 profiles126 · h 35
- K. Kanaya2 profiles125 · h 38
- T. Kaneko3 profiles121 · h 35
- M. Fukugita116 · h 0
- Y. Iwasaki2 profiles115 · h 33
- N. Ishizuka112 · h 36
- K. Kohri96 · h 67
- N. Yamada2 profiles96 · h 23
- The University of TokyoJP3.3k papers
- Kyoto UniversityJP2.2k papers
- Nagoya UniversityJP2k papers
- Tokyo Institute of TechnologyJP2k papers
- The University of OsakaJP1.9k papers
- University of TsukubaJP1.8k papers
- Institute for High Energy PhysicsES1.8k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.7k papers
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Brookhaven National LaboratoryUS1.7k papers
- The University of MelbourneAU1.7k papers
- Chinese Academy of SciencesCN1.7k papers
27 papers · 2 filters
The Fuzzy S^4 by Quantum Deformation
S. Aoyama, T. Masuda
The fuzzy algebra of S^4 is discussed by quantum deformation. To this end we embed the classical S^4 in the Kaehler coset space SO(5)/U(2). The harmonic functions of S^4 are constr…
Note on a Closed String Field Theory from Bosonic IIB Matrix Model
Daiji Ennyu, Hiroshi Kawabe, Naohito Nakazawa
We apply stochastic quantization method to the bosonic part of IIB matrix model, i.e., a naive zero volume limit of large N Yang-Mills theory, to construct a collective field theor…
Chiral Anomaly and Ginsparg-Wilson Relation on the Noncommutative Torus
Satoshi Iso, Keiichi Nagao
We evaluate chiral anomaly on the noncommutative torus with the overlap Dirac operator satisfying the Ginsparg-Wilson relation in arbitrary even dimensions. Utilizing a topological…
A new holographic limit of AdS5 x S5
Machiko Hatsuda, Warren Siegel
We re-examine the projective lightcone limit of the gauge-invariant Green-Schwarz action on 5D anti-de Sitter x the five-sphere. It implies the usual holography for AdS5, but also…
Type IIB 2-form Fields and Gauge Coupling Constant of 4D N=2 super QCD
Takuhiro Kitao
We study the relation between the Type IIB (NSNS and RR) 2-form fields and the (complex) gauge coupling constant of the 4D N=2 SU(Nc) super Yang-Mills theory with Nf fundamental ma…
Closed String Tachyons and RG flows
Takao Suyama
We consider bulk tachyon condensations in a non-linear sigma model whose low energy effective theory contains a nontrivial scalar potential. We argue that one would typically encou…
Noncommuting Electric Fields and Algebraic Consistency in Noncommutative Gauge theories
Rabin Banerjee
We show that noncommuting electric fields occur naturally in -expanded noncommutative gauge theories. Using this noncommutativity, which is field dependent, and a hamiltonian ge…
Classical Stability of Charged Black Branes and the Gubser-Mitra Conjecture
Takayuki Hirayama, Gungwon Kang, Youngone Lee
We have investigated the classical stability of magnetically charged black -brane solutions for string theories that include the case studied by Gregory and Laflamme. It turns o…
Fuzzy Algebrae of the General Kaehler Coset Space G/H\otimesU(1)^k
Shogo Aoyama, Takahiro Masuda
We study the fuzzy structure of the general Kaehler coset space G/S\otimes{U(1)}^k deformed by the Fedosov formalism. It is shown that the Killing potentials satisfy the fuzzy alge…
Penrose limits and Green-Schwarz strings
Shun'ya Mizoguchi, Takeshi Mogami, Yuji Satoh
We discuss the Green-Schwarz action for type IIB strings in general plane-wave backgrounds obtained as Penrose limits from any IIB supergravity solutions with vanishing background…
Comments on Quantum Aspects of Three-Dimensional de Sitter Gravity
Hiroshi Umetsu, Naoto Yokoi
We investigate the quantum aspects of three-dimensional gravity with a positive cosmological constant. The reduced phase space of the three-dimensional de Sitter gravity is obtaine…
Gauge invariant action for superstring in Ramond-Ramond plane-wave background
Machiko Hatsuda, Kiyoshi Kamimura, Makoto Sakaguchi
We present a gauge invariant action for a superstring in the plane wave background with Ramond-Ramond (RR) five-form flux. The Wess-Zumino term is given explicitly in a bilinear fo…
Novel Symmetries in Axion-Dilaton Cosmology
Jnanadeva Maharana
The symmetry structure of axion-dilaton quantum string cosmology is investigated. The invariance of the string effective action under S-duality group, SU(1,1), facilitates solution…
Supersymmetric action of multiple D0-branes from Matrix theory
Masako Asano, Yasuhiro Sekino
We study one-loop effective action of Berkooz-Douglas Matrix theory and obtain non-abelian action of D0-branes in the longitudinal 5-brane background. In this paper, we extend the…
Matrix Models in Homogeneous Spaces
Y. Kitazawa
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…
Normalization of Off-shell Boundary State, g-function and Zeta Function Regularization
H. Itoyama, T. Oota
We consider the model in two dimensions with boundary quadratic deformation (BQD), which has been discussed in tachyon condensation. The partition function of this model (BQD) on a…
Wess-Zumino term for AdS superstring
Machiko Hatsuda, Makoto Sakaguchi
We examine a bilinear form Wess-Zumino term for a superstring in anti-de Sitter (AdS) spaces. This is composed of two parts; a bilinear term in superinvariant currents and a total…
Deformation of CHS model
Takao Suyama
We calculate mass spectrum of CHS model deformed by an exactly marginal operator, and find that there are tachyons which are not localized in the target space. Similar deformation…
Orbifold Matrix Model
H. Aoki, S. Iso, T. Suyama
We study a matrix model describing type IIB superstring in orbifold backgrounds. We particularly consider a {\bf C}^3/{\bf Z}_3 orbifold model whose six dimensional transverse spac…
Noncommutative Gauge Theory on Fuzzy Four-Sphere and Matrix Model
Yusuke Kimura
We study a noncommutative gauge theory on a fuzzy four-sphere. The idea is to use a matrix model with a fifth-rank Chern-Simons term and to expand matrices around the fuzzy four-sp…
Super-PP-wave Algebra from Super-AdS x S Algebras in Eleven-dimensions
Machiko Hatsuda, Kiyoshi Kamimura, Makoto Sakaguchi
Maximally supersymmetric spacetime algebras in eleven-dimensions, which are the isometry superalgebras of Minkowski space, AdS_7 x S^4, AdS_4 x S^7 and pp-wave background, are rela…
From Super-AdS_5xS^5 Algebra to Super-pp-wave Algebra
Machiko Hatsuda, Kiyoshi Kamimura, Makoto Sakaguchi
The isometry algebras of the maximally supersymmetric solutions of IIB supergravity are derived by the Inonu-Wigner contractions of the super-AdS_5xS^5 algebra. The super-AdS_5xS^5…
Duality, Monodromy and Integrability of Two Dimensional String Effective Action
Ashok Das, J. Maharana, A. Melikyan
The monodromy matrix, , is constructed for two dimensional tree level string effective action. The pole structure of is derived using its factoriza…
W(E_10) Symmetry, M-Theory and Painleve Equations
Shun'ya Mizoguchi, Yasuhiko Yamada
The Weyl group symmetry W(E_k) is studied from the points of view of the E-strings, Painleve equations and U-duality. We give a simple reformulation of the elliptic Painleve equati…