Complementarity and information in "Delayed-choice for entanglement swapping"
- Author(s)
- Caslav Brukner, Markus Aspelmeyer, Anton Zeilinger
- Abstract
Building on Peres' idea of "Delayed-choice for entanglement swapping" we show that even the degree to which quantum systems were entangled can be defined after they have been registered and may even not exist any more. This does not arise as a paradox if the quantum state is viewed as just a representative of information. Moreover such a view gives a natural quantification of the complementarity between the measure of information about the input state for teleportation and the amount of entanglement of the resulting swapped entangled state. © 2005 Springer Science+Business Media, Inc.
- Organisation(s)
- Journal
- Foundations of Physics
- Volume
- 35
- Pages
- 1909-1919
- No. of pages
- 11
- ISSN
- 0015-9018
- DOI
- https://doi.org/10.1007/s10701-005-7355-2
- Publication date
- 2005
- Austrian Fields of Science 2012
- 103026 Quantum optics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/complementarity-and-information-in-delayedchoice-for-entanglement-swapping(0adb7328-7daa-41f6-9cd7-1bd9d08da31f).html