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 twoqubit 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.
Reconfigurable controlled two-qubit operation on a quantum photonic chip / Li, H. W.; Przeslak, S.; Niskanen, A. O.; Matthews, J. C. F.; Politi, A.; Shadbolt, P.; Laing, A.; Lobino, M.; Thompson, M. G.; O'Brien, J. L.. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - 13:11(2011), p. 115009. [10.1088/1367-2630/13/11/115009]
Reconfigurable controlled two-qubit operation on a quantum photonic chip
Lobino M.;
2011-01-01
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 twoqubit 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
