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Fast generation of ...
Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator
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- He, X. L. (author)
- Chinese Academy of Sciences
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- Lu, Yong, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Universität Stuttgart,University of Stuttgart
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- Bao, D. Q. (author)
- Chinese Academy of Sciences
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- Xue, Hang (author)
- Chinese Academy of Sciences
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- Jiang, W. B. (author)
- Chinese Academy of Sciences
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- Wang, Z. (author)
- Chinese Academy of Sciences
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- Fadavi Roudsari, Anita, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Delsing, Per, 1959 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tsai, J. S. (author)
- Tokyo University of Science,RIKEN
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- Lin, Z. R. (author)
- Chinese Academy of Sciences
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Nature Communications. - 2041-1723 .- 2041-1723. ; 14:1
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Abstract
Subject headings
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- Schrödinger cat states, quantum superpositions of macroscopically distinct classical states, are an important resource for quantum communication, quantum metrology and quantum computation. Especially, cat states in a phase space protected against phase-flip errors can be used as a logical qubit. However, cat states, normally generated in three-dimensional cavities and/or strong multi-photon drives, are facing the challenges of scalability and controllability. Here, we present a strategy to generate and preserve cat states in a coplanar superconducting circuit by the fast modulation of Kerr nonlinearity. At the Kerr-free work point, our cat states are passively preserved due to the vanishing Kerr effect. We are able to prepare a 2-component cat state in our chip-based device with a fidelity reaching 89.1% under a 96 ns gate time. Our scheme shows an excellent route to constructing a chip-based bosonic quantum processor.
Subject headings
- 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)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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He, X. L.
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Lu, Yong, 1989
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Bao, D. Q.
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Xue, Hang
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Jiang, W. B.
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Wang, Z.
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show more...
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Fadavi Roudsari, ...
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Delsing, Per, 19 ...
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Tsai, J. S.
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Lin, Z. R.
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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 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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Nature Communica ...
- By the university
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Chalmers University of Technology