Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1863107 | Physics Letters A | 2006 | 6 Pages |
Abstract
We investigate the critical behavior of pairwise entanglement at quantum phase transitions (QPT) in several exactly solvable spin models with noise in system control parameters. We show that the exact critical behavior will change due to noise. When the noise is not too large, pairwise entanglement is robust as a signature of QPT in some spin models.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Jian-Ming Cai, Zheng-Wei Zhou, Guang-Can Guo,