期刊
NATURE PHYSICS
卷 15, 期 8, 页码 741-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41567-019-0507-7
关键词
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资金
- Army Research Office [W911NF-15-2-0058]
- Air Force Office of Scientific Research
- Department of Energy (DOE)
- NSF GRFP [NSF DGE-1144085]
- LDRD funds from Argonne National Laboratory
- DOE, Office of Basic Energy Sciences
- David and Lucile Packard Foundation
- UChicago MRSEC [NSF DMR-1420709]
- SHyNE, National Science Foundation's National Nanotechnology Coordinated Infrastructure [NSF NNCI-1542205]
Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, as entanglement is required to achieve and verify secure communications(1). Remote entanglement has been realized using a number of different probabilistic schemes(2,3), but deterministic remote entanglement has only been demonstrated recently, using a variety of superconducting circuit approaches(4-6). However, the deterministic violation of a Bell (i)nequality7, a strong measure of quantum correlation, has not been demonstrated so far in a superconducting quantum communication architecture, in part because achieving sufficiently strong correlation requires fast and accurate control of the emission and capture of the entangling photons. Here, we present a simple and robust architecture for achieving this benchmark result in a superconducting system.
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