The type IIB matrix model has been investigated as a possible nonperturbative formulation of superstring theory. In particular, it was found by Monte Carlo simulation of the Lorentzian version that the 9-dimensional rotational symmetry of the spatial matrices is broken spontaneously to the 3-dimensional one after some "critical time". In this paper we develop a new simulation method based on the effective theory for the submatrices corresponding to the late time. Using this method, one can obtain the results for N×N matrices by simulating matrices typically of the size O(N). We confirm the validity of this method and demonstrate its usefulness in simplified models.
@article{arxiv.1705.07812,
title = {A new method for probing the late-time dynamics in the Lorentzian type IIB matrix model},
author = {Takehiro Azuma and Yuta Ito and Jun Nishimura and Asato Tsuchiya},
journal= {arXiv preprint arXiv:1705.07812},
year = {2019}
}