233 citations · 4.2k across the 143 of their papers we have counts for
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Testing the Gaussian expansion method in exactly solvable matrix models
Jun Nishimura, Toshiyuki Okubo, Fumihiko Sugino
The Gaussian expansion has been developed since early 80s as a powerful analytical method, which enables nonperturbative studies of various systems using `perturbative' calculation…
Lattice Superstring and Noncommutative Geometry
Jun Nishimura
Recent developments in superstring theory and noncommutative geometry are deeply related to the idea of Eguchi-Kawai reduction in large N gauge theories which dates back to early 8…
A New Method for Simulating QCD at Finite Density
Jun Nishimura
We propose a new method for simulating QCD at finite density, where interesting phases such as the color superconductivity phase is conjectured to appear. The method is based on a…
The Factorization Method for Simulating Systems With a Complex Action
Jan Ambjorn, Konstantinos N. Anagnostopoulos, Jun Nishimura +1
We propose a method for Monte Carlo simulations of systems with a complex action. The method has the advantages of being in principle applicable to any such system and provides a s…
The Non-Commutative λϕ^{4} Model
W. Bietenholz, F. Hofheinz, J. Nishimura
In the recent years, field theory on non-commutative (NC) spaces has attracted a lot of attention. Most literature on this subject deals with perturbation theory, although the latt…
Factorization Method for Simulating QCD at Finite Density
Jun Nishimura
We propose a new method for simulating QCD at finite density. The method is based on a general factorization property of distribution functions of observables, and it is therefore…