Entanglement measure for any quantum states

Hyuk-jae Lee, Sung Dahm Oh, Doyeol Ahn

Published 2003-06-19Version 1

The entanglement measure for multiqudits is proposed. This measure calculates the partial entanglement distributed by subsystems and the complete entanglement of the total system. This shows that we need to measure the subsystem entanglements to explain the full description for multiqudit entanglement. Furthermore, we extend the entanglement measure to mixed multiqubits and the higher dimension Hilbert spaces.