Application of contractor renormalization group to the Heisenberg zig-zag and the Hubbard chain

被引：1
|
作者：
Cichy, K. [1 ]
Tomczak, P. [1 ]
机构：
[1] Adam Mickiewicz Univ Poznan, Inst Phys, PL-61614 Poznan, Poland
来源：
ACTA PHYSICA POLONICA A | 2007年 / 111卷 / 05期
关键词：
D O I：
10.12693/APhysPolA.111.773
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The contractor renormalization group method was devised in 1994 by Morningstar and Weinstein. It was primarily aimed at extracting the physics of lattice quantum field theories (like lattice quantum chromo dynamics). However, it is a general method of analyzing Hamiltonian lattice systems, e.g. Ising, Heisenberg or Hubbard models. The aim of this work is to show the application of contractor renormalization group method to one-dimensional quantum systems - the Heisenberg zig-zag model and the Hubbard chain. As a test of the method, the ground state energy of these systems will be calculated.
引用
收藏
页码：773 / 780
页数：8
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