Density Matrix Renormalization Group and Periodic Boundary Conditions: A Quantum Information Perspective
Abstract
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.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2004
- DOI:
- arXiv:
- arXiv:cond-mat/0404706
- Bibcode:
- 2004PhRvL..93v7205V
- Keywords:
-
- 75.10.Jm;
- 02.70.-c;
- 03.67.Mn;
- 75.40.Mg;
- Quantized spin models;
- Computational techniques;
- simulations;
- Entanglement production characterization and manipulation;
- Numerical simulation studies;
- Strongly Correlated Electrons
- E-Print:
- 4 pages