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Reconfigurable controlled two-qubit operation on a quantum photonic chip

Reconfigurable controlled two-qubit operation on a quantum photonic chip
Reconfigurable controlled two-qubit operation on a quantum photonic chip
Integrated quantum photonics is an appealing platform for quantum information processing, quantum communication and quantum metrology. In all these applications it is necessary not only to be able to create and detect Fock states of light but also to programme the photonic circuits that implement some desired logical operation. Here we demonstrate a reconfigurable controlled two-qubit operation on a chip using a multiwaveguide interferometer with a tunable phase shifter. We found excellent agreement between theory and experiment, with a 0.98 ± 0.02 average similarity between measured and ideal operations
115009
Li, H.W.
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Przeslak, S.
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Niskanen, A.O.
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Matthews, J.C.F.
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Politi, A.
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Shadbolt, P.
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Laing, A.
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Lobino, M.
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Thompson, M.G.
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O'Brien, J.L.
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Li, H.W.
3bb333f9-4532-4e6b-bb68-d42070f70293
Przeslak, S.
068d5828-3f24-43bb-8ae5-62c24152c9bc
Niskanen, A.O.
f9a3cad6-76ec-4e4a-bed9-e131925c5566
Matthews, J.C.F.
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Politi, A.
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Shadbolt, P.
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Laing, A.
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Lobino, M.
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Thompson, M.G.
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O'Brien, J.L.
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Li, H.W., Przeslak, S., Niskanen, A.O., Matthews, J.C.F., Politi, A., Shadbolt, P., Laing, A., Lobino, M., Thompson, M.G. and O'Brien, J.L. (2011) Reconfigurable controlled two-qubit operation on a quantum photonic chip. New Journal of Physics, 13 (11), 115009. (doi:10.1088/1367-2630/13/11/115009).

Record type: Article

Abstract

Integrated quantum photonics is an appealing platform for quantum information processing, quantum communication and quantum metrology. In all these applications it is necessary not only to be able to create and detect Fock states of light but also to programme the photonic circuits that implement some desired logical operation. Here we demonstrate a reconfigurable controlled two-qubit operation on a chip using a multiwaveguide interferometer with a tunable phase shifter. We found excellent agreement between theory and experiment, with a 0.98 ± 0.02 average similarity between measured and ideal operations

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Published date: 11 November 2011
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 377109
URI: http://eprints.soton.ac.uk/id/eprint/377109
PURE UUID: 9fd44dc4-dbdc-4ca3-bb85-245f455e01e7
ORCID for A. Politi: ORCID iD orcid.org/0000-0002-3668-9474

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Date deposited: 22 May 2015 09:28
Last modified: 20 Jul 2019 00:37

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Contributors

Author: H.W. Li
Author: S. Przeslak
Author: A.O. Niskanen
Author: J.C.F. Matthews
Author: A. Politi ORCID iD
Author: P. Shadbolt
Author: A. Laing
Author: M. Lobino
Author: M.G. Thompson
Author: J.L. O'Brien

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