Simultaneous entanglement swapping of multiple orbital angular momentum states of light.

ABSTRACT: High-bit-rate long-distance quantum communication is a proposed technology for future communication networks and relies on high-dimensional quantum entanglement as a core resource. While it is known that spatial modes of light provide an avenue for high-dimensional entanglement, the ability to transport such quantum states robustly over long distances remains challenging. To overcome this, entanglement swapping may be used to generate remote quantum correlations between particles that have not interacted; this is the core ingredient of a quantum repeater, akin to repeaters in optical fibre networks. Here we demonstrate entanglement swapping of multiple orbital angular momentum states of light. Our approach does not distinguish between different anti-symmetric states, and thus entanglement

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC5608840 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature