Violating Bell’s inequality with remotely connected superconducting qubits

Zhong, Y. P.; Chang, H. -S.; Satzinger, K. J.; Chou, M. H.; Bienfait, A.; Conner, C. R.; Dumur, É.; Grebel, J.; Peairs, G. A.; Povey, R. G.; Schuster, D. I.; Cleland, A. N.

doi:10.1038/s41567-019-0507-7

Title: Violating Bell’s inequality with remotely connected superconducting qubits

Journal Article · Mon Apr 22 00:00:00 EDT 2019 · Nature Physics

DOI:https://doi.org/10.1038/s41567-019-0507-7· OSTI ID:1557614

^[1];

^[1]; Satzinger, K. J. ^[2]; Chou, M. H. ^[3];

^[1]; Conner, C. R. ^[1]; Dumur, É. ^[4]; Grebel, J. ^[1]; Peairs, G. A. ^[5];

^[3]; Schuster, D. I. ^[6];

^[4]

Univ. of Chicago, IL (United States). Inst. for Molecular Engineering
Univ. of Chicago, IL (United States). Inst. for Molecular Engineering; Univ. of California, Santa Barbara, CA (United States). Dept. of Physics; Google Inc., Santa Barbara, CA (United States)
Univ. of Chicago, IL (United States). Inst. for Molecular Engineering, and Dept. of Physics
Univ. of Chicago, IL (United States). Inst. for Molecular Engineering; Argonne National Lab. (ANL), Argonne, IL (United States). Inst. for Molecular Engineering, and Materials Science Division
Univ. of Chicago, IL (United States). Inst. for Molecular Engineering; Univ. of California, Santa Barbara, CA (United States). Dept. of Physics
Univ. of Chicago, IL (United States). Dept. of Physics

Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, as entanglement is required to achieve and verify secure communications. Remote entanglement has been realized using a number of different probabilistic schemes, but deterministic remote entanglement has only been demonstrated recently, using a variety of superconducting circuit approaches. However, the deterministic violation of a Bell inequality, 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. We present a simple and robust architecture for achieving this benchmark result in a superconducting system.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: Army Research Office (ARO); National Science Foundation (NSF); Univ. of Chicago, IL (United States). Materials Research Science & Engineering Center (MRSEC); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1557614

Journal Information:: Nature Physics, Vol. 15, Issue 8; ISSN 1745-2473

Publisher:: Nature Publishing Group (NPG)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 30 works

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Cited By (5)

Quantum Josephson junction circuits and the dawn of artificial atoms Martinis, John M.; Devoret, Michel H.; Clarke, John Nature Physics, Vol. 16, Issue 3 https://doi.org/10.1038/s41567-020-0829-5	journal	March 2020
Pulse-enhanced two-photon interference with solid state quantum emitters Fotso, Herbert F. Physical Review B, Vol. 100, Issue 9 https://doi.org/10.1103/physrevb.100.094309	journal	September 2019
Phonon-mediated quantum state transfer and remote qubit entanglement Bienfait, A.; Satzinger, K. J.; Zhong, Y. P. Science, Vol. 364, Issue 6438 https://doi.org/10.1126/science.aaw8415	journal	April 2019
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Pulse-Enhanced Two-Photon Interference with Solid State Quantum Emitters Fotso, Herbert F. arXiv https://doi.org/10.48550/arxiv.1907.00045	text	January 2019

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