Experimental time-reversed adaptive Bell measurement towards all-photonic quantum repeaters.

ABSTRACT: An all-optical network is identified as a promising infrastructure for fast and energy-efficient communication. Recently, it has been shown that its quantum version based on 'all-photonic quantum repeaters'-inheriting, at least, the same advantages-expands its possibility to the quantum realm, that is, a global quantum internet with applications far beyond the conventional Internet. Here we report a proof-of-principle experiment for a key component for the all-photonic repeaters-called all-photonic time-reversed adaptive (TRA) Bell measurement, with a proposal for the implementation. In particular, our TRA measurement-based only on optical devices without any quantum memories and any quantum error correction-passively but selectively performs the Bell measurement only on single photons tha

SUBMITTER: Hasegawa Y 

PROVIDER: S-EPMC6349889 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature