Creating quantum correlations through local nonunitary memoryless channels
Source: Phys. Rev. A 85, 010102 (2012); http://dx.doi.org/10.1103/PhysRevA.85.010102
Published 30 January 2012
*
Full Text: Access via Source Journal Abstract
Download Citation
Research Toolkit
We show that two qubits, initially in a fully classical state, can develop significant quantum correlations as measured by the quantum discord (QD) under the action of a local memoryless noise (specifically we consider the case of a Markovian amplitude-damping channel). This is analytically proven after deriving in a compact form the QD for the class of separable states involved in such a process. We provide a picture in the Bloch sphere that unambiguously highlights the physical mechanism behind the effect regardless of the specific measure of quantum correlations adopted.
| History: | Received 8 June 2011; published 30 January 2012 |
| Digital Object Identifier: |
http://dx.doi.org/10.1103/PhysRevA.85.010102 |
ADVERTISEMENT
