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An Observable Measure of Multiqubit Entanglement for Pure States

Published

Author(s)

G K. Brennen

Abstract

Recently, Meyer and Wallach [D.A. Meyer and N.R. Wallach (2002), J. of Math. Phys., 43, pp. 4273] proposed a measure of multi-qubit entanglement that is a function on pure states. We find that this function can be interpreted as a physical quantity related to the average purity of the constituent qubits and show how it can be observed in a quantum non-demolition measurement. A possible realization is described for measuring the entanglement of a chain of atomic qubits trapped in a 3D optical lattice.
Citation
International Conference on Quantum Information

Keywords

entanglement

Citation

Brennen, G. (2008), An Observable Measure of Multiqubit Entanglement for Pure States, International Conference on Quantum Information (Accessed May 30, 2024)

Issues

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Created October 16, 2008