center_img © 2017 For the first time, physicists have experimentally demonstrated a quantum secure direct communication (QSDC) protocol combined with quantum memory, which is essential for storing and controlling the transfer of information. Until now, QSDC protocols have used fiber delay lines as a substitute for quantum memory, but the use of quantum memory is necessary for future applications, such as long-distance communication over secure quantum networks. Citation: Physicists use quantum memory to demonstrate quantum secure direct communication (2017, June 12) retrieved 18 August 2019 from Journal information: Physical Review Letterslast_img

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