Entanglement and quantum phase transition in the asymmetric Hubbard chain: density-matrix renormalization group calculations
Strongly Correlated Electrons
2009-11-13 v1 Other Condensed Matter
Abstract
We study the ground state quantum phase transition by means of entanglement in the one-dimensional asymmetric Hubbard model with open boundary condition. The local entanglement between the middle two sites and the rest of the system, and the block entanglement between the left and right portions of the system, are calculated using the density-matrix renormalization group (DMRG) method. We find that the entanglement shows interesting scaling and singular behavior around the phase transition line.
Keywords
Cite
@article{arxiv.0805.2021,
title = {Entanglement and quantum phase transition in the asymmetric Hubbard chain: density-matrix renormalization group calculations},
author = {W. L. Chan and S. J. Gu},
journal= {arXiv preprint arXiv:0805.2021},
year = {2009}
}
Comments
9 pages, 17 figures. One figure is removed