Genuine multipartite entanglement is not a precondition for secure conference key agreement
Entanglement plays a crucial role in the security of quantum key distribution. A secret key can only be obtained by two parties if there exists a corresponding entanglement-based description of the protocol in which entanglement is witnessed, as shown by Curty et al. [M. Curty, M. Lewenstein, and N....
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2021-03-01
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Series: | Physical Review Research |
Online Access: | http://doi.org/10.1103/PhysRevResearch.3.013264 |