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Generating Two Cont...
Generating Two Continuous Entangled Microwave Beams Using a dc-Biased Josephson Junction
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- Peugeot, A. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Menard, G. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Dambach, S. (author)
- Universität Ulm,University of Ulm
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- Westig, M. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Kubala, B. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Universität Ulm,University of Ulm
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- Mukharsky, Y. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Altimiras, C. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Joyez, P. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Vion, D. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Roche, P. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Esteve, D. (author)
- Université Paris-Saclay,University Paris-Saclay
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Milman, P. (author)
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- Leppaekangas, J. (author)
- Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)
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- Johansson, Göran, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hofheinz, M. (author)
- Université de Sherbrooke
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- Ankerhold, J. (author)
- Universität Ulm,University of Ulm
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- Portier, F. (author)
- Université Paris-Saclay,University Paris-Saclay
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(creator_code:org_t)
- 2021
- 2021
- English.
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In: Physical Review X. - 2160-3308. ; 11:3
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Abstract
Subject headings
Close
- We show experimentally that a dc-biased Josephson junction in series with two microwave resonators emits entangled beams of microwaves leaking out of the resonators. In the absence of a stationary phase reference for characterizing the entanglement of the outgoing beams, we measure second-order coherence functions to prove the entanglement. The experimental results are found in quantitative agreement with theory, proving that the low-frequency noise of the dc bias is the main limitation for the coherence time of the entangled beams. This agreement allows us to evaluate the entropy of entanglement of the resonators, estimate the entanglement flux at their output, and to identify the improvements that could bring this device closer to a useful bright source of entangled microwaves for quantum-technological applications.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Superconductivity
- Quantum Physics
- Mesoscopics
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Peugeot, A.
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Menard, G.
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Dambach, S.
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Westig, M.
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Kubala, B.
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Mukharsky, Y.
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show more...
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Altimiras, C.
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Joyez, P.
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Vion, D.
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Roche, P.
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Esteve, D.
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Milman, P.
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Leppaekangas, J.
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Johansson, Göran ...
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Hofheinz, M.
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Ankerhold, J.
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Portier, F.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Accelerator Phys ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- Articles in the publication
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Physical Review ...
- By the university
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Chalmers University of Technology