摘要
The Monte Carlo Hamiltonian method developed recently allows to investigate the ground state and low-lying excited states of a quantum system,using Monte Carlo(MC)algorithm with importance sampling.However,conventional MC algorithm has some difficulties when applied to inverse potentials.We propose to use effective potential and extrapolation method to solve the problem.We present examples from the hydrogen system.
基金
国家自然科学基金，Talent Project of the Ministry of Education of China,Science Foundation of Educational Bureau of Guangdong Province of China,the Key Project of International Col，广东省教育厅科研项目，国际合作项目，加拿大国家科学及工程研究基金
