NEW QUANTUM MONTE-CARLO METHOD FOR STRONGLY CORRELATED SYSTEMS - QUANTUM MELTING

被引：11
|
作者：
PIKUS, FG
EFROS, AL
机构：
[1] Department of Physics, University of Utah, Salt Lake City
来源：
SOLID STATE COMMUNICATIONS | 1994年 / 92卷 / 06期
基金：
美国国家科学基金会;
关键词：
D ELECTRON-ELECTRON INTERACTIONS; D ELECTRONIC TRANSPORT; D PHASE TRANSITIONS;
D O I：
10.1016/0038-1098(94)90483-9
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A new quantum Monte-Carlo method, efficient for systems with diagonal-dominated Hamiltonians, is proposed. The eigenstates are found by diagonalization of the Hamiltonian in a truncated basis generated by a Monte-Carlo algorithm. The method is applied to the problem of the quantum melting of a Wigner crystal on a lattice. Arguments are given that this is a second order phase transition and a connection between the melting and the distribution of the lowest energy levels is demonstrated.
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页码：485 / 488
页数：4
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