Density matrix renormalization group algorithms with a single center site
Top Cited Papers
- 17 November 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (18), 180403
- https://doi.org/10.1103/physrevb.72.180403
Abstract
We develop a correction to the density matrix used in density matrix renormalization group calculations to take into account the incompleteness of the environment block. The correction allows successful calculations using only a single site in the center of the system, rather than the standard two sites, improving typical computation times by a factor of two to four. In addition, in many cases where the ordinary density matrix renormalization group method can get stuck in metastable configurations, the correction eliminates the sticking. We test the method on the Heisenberg chain.
Keywords
This publication has 5 references indexed in Scilit:
- The density-matrix renormalization groupReviews of Modern Physics, 2005
- Density Matrix Renormalization Group Study of the Striped Phase in the 2DModelPhysical Review Letters, 1998
- Density-matrix algorithms for quantum renormalization groupsPhysical Review B, 1993
- Numerical renormalization-group study of low-lying eigenstates of the antiferromagneticS=1 Heisenberg chainPhysical Review B, 1993
- Density matrix formulation for quantum renormalization groupsPhysical Review Letters, 1992