| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1862189 | Physics Letters A | 2007 | 9 Pages |
Abstract
We present a necessary condition for genuine entanglement of generalized Bell diagonal states in multiqubit systems. This condition has also been generalized into a general case with some restrictions, based on the direct sum representation of certain density matrices, and we show that generalized Bell diagonal states can be represented by the direct sum form.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Cheng-Jie Zhang, Yong-Sheng Zhang, Guang-Can Guo,