Entanglement, Mixedness, and Spin-Flip Symmetry in Multiple-Qubit Systems
Quantum Physics
2009-11-10 v1
Abstract
A relationship between a recently introduced multipartite entanglement measure, state mixedness, and spin-flip symmetry is established for any finite number of qubits. It is also shown that, within those classes of states invariant under the spin-flip transformation, there is a complementarity relation between multipartite entanglement and mixedness. A number of example classes of multiple-qubit systems are studied in light of this relationship.
Cite
@article{arxiv.quant-ph/0307124,
title = {Entanglement, Mixedness, and Spin-Flip Symmetry in Multiple-Qubit Systems},
author = {Gregg Jaeger and Alexander V. Sergienko and Bahaa E. A. Saleh and Malvin C. Teich},
journal= {arXiv preprint arXiv:quant-ph/0307124},
year = {2009}
}
Comments
To appear in Physical Review A; submitted 14 May 2003