Monte Carlo approach to nonperturbative superstring theory (格子場の理論スクール)

スポンサーリンク

概要

• 論文の詳細を見る

• Considering the success of the Monte Carlo approach to the nonperturbative dynamics of QCD, it is natural to expect that a similar approach must be equally fruitful in understanding the nonperturbative dynamics of superstring theory. The main obstacle is due to the 'complex-action problem', which actually occurs in many other interesting systems in physics. We propose a new approach to this problem, which utilizes a factorization property of distribution functions. The method is quite general and it has been also tested in various θ-vacuum like systems and Random Matrix Theory for finite density QCD. In the application to the superstring theory, the distribution function turns out to be positive definite, which allows us to reduce the problem even further. Our numerical results suggest an intuitive explanation for the dynamical generation of 4d space-time. Recently the same conclusion has been also suggested by using the Gaussian expansion method.

• 素粒子論グループ 素粒子研究編集部の論文
• 2004-06-20

著者

• Nishimura Jun

  Department Of Physics Nagoya University

• 西村 淳

  Department of Physics, Nagoya University

関連論文

• Monte Carlo approach to nonperturbative superstring theory (格子場の理論スクール)

スポンサーリンク