Experimental proposal of switched "delayed-choice" for entanglement swapping
- Author(s)
- Thomas Jennewein, Caslav Brukner, Markus Aspelmeyer, Anton Zeilinger
- Abstract
Entanglement swapping is a fascinating generalization of quantum teleportation, where the entanglement between pairs is interchanged leading to entanglement between particles that never interacted. Extending the idea of Peres, we propose an experimental setup where the choice which quantum systems are finally entangled is made at a time after they have been registered and do not even exist anymore. Our proposed setup can be used in Third-Man Quantum Cryptography wherea third party can control whether Alice and Bob are able to communicate secretly, but he does know their secret key. ΠWorld Scientific Publishing Company.
- Organisation(s)
- Journal
- International Journal of Quantum Information (IJQI)
- Volume
- 3
- Pages
- 73-79
- No. of pages
- 7
- ISSN
- 0219-7499
- DOI
- https://doi.org/10.1142/S0219749905000505
- Publication date
- 2005
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103026 Quantum optics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/853edf7f-38f2-47d6-83d9-9e65642d8648