| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1862088 | Physics Letters A | 2009 | 5 Pages |
Abstract
We provide a new class of positive maps in matrix algebras. The construction is based on the family of balls living in the space of density matrices of n-level quantum system. This class generalizes the celebrated Choi map and provide a wide family of entanglement witnesses which define a basic tool for analyzing quantum entanglement.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Dariusz Chruściński, Andrzej Kossakowski,