Density matrix renormalization group and periodic boundary conditions: A quantum information perspective

被引：448

作者：

Verstraete, F ^{[1
]}

Porras, D ^{[1
]}

Cirac, JI ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.93.227205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce a picture to analyze the density matrix renormalization group (DMRG) numerical method from a quantum information perspective. This leads to a variational formulation of DMRG which allows for dramatic improvements in the case of problems with periodic boundary conditions. The picture also explains some features of the method in terms of entanglement and teleportation.

引用

页数：4

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