42 citations · 194 across the 10 of their papers we have counts for
10 papers
Field Equations of Massless Fields in the New Interpretation of the Matrix Model
Ko Furuta, Masanori Hanada, Hikaru Kawai +1
Recently, some of the authors have introduced a new interpretation of matrix models in which covariant derivatives on any curved space can be expressed by large-N matrices. It has…
Non-local Matching Condition and Scale-invariant Spectrum in Bouncing Cosmology
Chong-Sun Chu, Ko Furuta, Feng-Li Lin
In cosmological scenarios such as the pre-big bang scenario or the ekpyrotic scenario, a matching condition between the metric perturbations in the pre-big bang phase and those in…
Locality, Causality and Noncommutative Geometry
Chong-Sun Chu, Ko Furuta, Takeo Inami
We analyse the causality condition in noncommutative field theory and show that the nonlocality of noncommutative interaction leads to a modification of the light cone to the light…
Colliding Plane Waves in String Theory
Bin Chen, Chong-Sun Chu, Ko Furuta +1
We construct colliding plane wave solutions in higher dimensional gravity theory with dilaton and higher form flux, which appears naturally in the low energy theory of string theor…
Average size of random polygons with fixed knot topology
Hiroshi Matsuda, Akihisa Yao, Hiroshi Tsukahara +3
We have evaluated by numerical simulation the average size of random polygons of fixed knot topology , and we have confirmed the scaling law…
Topics in Nonlinear Sigma Models in D=3
Ko Furuta, Takeo Inami, Masayoshi Yamamoto
Nonlinear sigma models (NLSM) in d=3 have many interesting and non-trivial features, which were explored poorly in contrast with NLSM in d=2 and d=4. We present a few results from…