Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states

Details Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states

2009-03-23

arxiv.org/abs/0903.3910v2

New J. Phys. 11, 083002 (2009)

Physics

Quantum Physics

13 pages including 4 figures, revtex4

Scientific paper

10.1088/1367-2630/11/8/083002

We present general numerical methods to construct witness operators for entanglement detection and estimation of the fidelity. Our methods are applied to detecting entanglement in the vicinity of a six-qubit Dicke state with three excitations and also to further entangled symmetric states. All our witnesses are designed to keep the measurement effort small. We present also general results on the efficient local decomposition of permutationally invariant operators, which makes it possible to measure projectors to symmetric states efficiently

Affiliated with

Also associated with

No associations

Rating

Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-347662