Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1808315 | Physica B: Condensed Matter | 2016 | 4 Pages |
Abstract
A scheme for implementing the direct measurement of Concurrence is given in a cavity–quantum dot system. The scenario not only can directly measure the Concurrence of two-spin pure entangled state, but also suitable for the case of mixed state. More importantly, all of the operations are of geometric nature, which depend on the cavity-state-free evolution and can be robust against random operation errors. Our scheme provided an alternative method for directly measuring the degree of entanglement in solid-state system.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Ping Dong, Jun Liu, Li-Hua Zhang, Zhuo-Liang Cao,