Article ID Journal Published Year Pages File Type
1808315 Physica B: Condensed Matter 2016 4 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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