Abstract
We introduce a measure for the genuinely N-partite (all-party) entanglement of N-qubit states using the trace distance metric and find an algebraic formula for the Greenberger-Horne-Zeilinger (GHZ)-diagonal states. We then use this formula to show how the all-party entanglement of experimentally produced GHZ states of an arbitrary number of qubits may be bounded with only four measurements.
Original language | English (US) |
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Article number | 062331 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 88 |
Issue number | 6 |
DOIs | |
State | Published - Dec 26 2013 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics