Entangled Entanglement

Author(s): G. Krenn, A. Zeilinger

Journal: Annals of the New York Academy of Sciences

Volume: 755

Page(s): 873-876

Year: 1995

DOI Number: --

Link: Link to publication


It is a well-known fact that, in general, values cannot be ascribed to quantum mechanical observables independent of the measurement context. In entangled systems, contextuality gives rise to the astonishing property that we cannot think of the results of measurements on one subsystem as being specified independent of the parameters of the measurements on the other subsystems. Although the different measurements can be spacelike separated, the results of each measurement depend on the complete experimental context of the whole system. An interesting consequence of this fact is that even entanglement itself can be an entangled property, which will be discussed in the following.

Note: Reprinted from “Fundamental Problems in Quantum Theory: A Conference Held in Honor of Professor John A. Wheeler”

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