Creation of the Space-Time

Creation of the Space-Time

We aim at providing a microscopic understandng of the early universe from the birth of the Universe till the Big Bang based on simulation of the matrix model proposed as a nonperturbative formulation of superstring theory. Since the matrix model simulation is plagued by the so-called sign problem (or the complex phase problem), we cannot apply the conventional Monte Carlo method, but we solve this problem by applying the complex Langevin method, which we have developed in our previous project supported by MEXT as “Priority Issue No.9 on Post-K computer” (Elucidation of the Fundamental Laws and Evolution of the Universe). In particular, we will confirm the emergence of (3+1)-dimensional expanding universe by performing large scale numerical simulations. We will also clarify the microscopic mechanism of the Inflation by measuring the rate of expansion.

Program for Promoting Researches on the Supercomputer Fugaku

BasicScience for Emergence and Functionality in Quantum Matter Toward a unified view of the universe: from large scale structures to planets Human-scale whole brain simulation with connectome analysis and structure-function estimation Development of nuclear fusion plasma confinement physics Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation Large-scale numerical simulation of earthquake generation, wave propagation and soil amplification Quantum-Theory-Based Multiscale Simulations toward the Development of Next-Generation Energy-Saving Semiconductor Devices Computational and Data Science Study for ET Revolution by Development of Next-Generation Battery and Fuel Cell Digital Twins of Real World's Clean Energy Systems with Integrated Utilization of Super-simulation and AI