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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11 November 2011
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., 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), .
(doi:10.1088/1367-2630/13/11/115009).
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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1367-2630_13_11_115009.pdf
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Published date: 11 November 2011
Organisations:
Quantum, Light & Matter Group
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Local EPrints ID: 377109
URI: http://eprints.soton.ac.uk/id/eprint/377109
PURE UUID: 9fd44dc4-dbdc-4ca3-bb85-245f455e01e7
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Date deposited: 22 May 2015 09:28
Last modified: 15 Mar 2024 03:49
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Contributors
Author:
H.W. Li
Author:
S. Przeslak
Author:
A.O. Niskanen
Author:
J.C.F. Matthews
Author:
P. Shadbolt
Author:
A. Laing
Author:
M. Lobino
Author:
M.G. Thompson
Author:
J.L. O'Brien
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