Superconducting Quantum Node for Entanglement and Storage of Microwave Radiation

E. Flurin 1, 2 N. Roch 1, 2 J. d. Pillet 1, 3, 2 F. Mallet 1, 2 B. Huard 1, 2
1 Electronique Quantique
LPA - Laboratoire Pierre Aigrain
2 QUANTIC - QUANTum Information Circuits
ENS Paris - École normale supérieure - Paris, Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6, MINES ParisTech - École nationale supérieure des mines de Paris, CNRS - Centre National de la Recherche Scientifique : UMR8551
Abstract : Superconducting circuits and microwave signals are good candidates to realize quantum networks, which are the backbone of quantum computers. We have realized a quantum node based on a 3D microwave superconducting cavity parametrically coupled to a transmission line by a Josephson ring modulator. We first demonstrate the time-controlled capture, storage and retrieval of an optimally shaped propagating microwave field, with an efficiency as high as 80%. We then demonstrate a second essential ability, which is the timed-controlled generation of an entangled state distributed between the node and a microwave channel.
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Submitted on : Friday, March 28, 2014 - 11:29:49 AM
Last modification on : Tuesday, May 14, 2019 - 10:42:54 AM

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E. Flurin, N. Roch, J. d. Pillet, F. Mallet, B. Huard. Superconducting Quantum Node for Entanglement and Storage of Microwave Radiation. Physical Review Letters, American Physical Society, 2015, 114 (9), pp.090503. ⟨10.1103/PhysRevLett.114.090503⟩. ⟨hal-00967262⟩



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