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Author  |
Biercuk, Michael J. |
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Title |
A quantum spectrum analyser |
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Journal Article |
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2011 |
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Nature Physics |
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Nat. Phys. |
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7 |
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525–526 |
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fromIPMRAS |
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Noise filters based on so-called dynamical decoupling pulse sequences can suppress decoherence in quantum systems. Turning this idea on its head now provides a new technique for studying the noise itself. |
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RPLAB @ gujma @ |
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826 |
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Author |
Billangeon, P.-M.; Nakamura, Y. |
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Title |
Superconducting devices: Quantum cups and balls |
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Journal Article |
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2011 |
Publication |
Nature Physics |
Abbreviated Journal |
Nat. Phys. |
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7 |
Issue |
8 |
Pages |
594-595 |
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fromIPMRAS |
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A single microwave photon in a superposition of two states of different frequency is now demonstrated using a superconducting quantum interference device to mediate the coupling between two harmonics of a resonator. Such quantum circuits bring closer the possibility of controlling photon-photon interactions at the single-photon level. |
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RPLAB @ gujma @ |
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820 |
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Bozyigit, D.; Lang, C.; Steffen, L.; Fink, J. M.; Eichler, C.; Baur, M.; Bianchetti, R.; Leek, P. J.; Filipp, S.; da Silva, M. P.; Blais, A.; Wallraff, A. |
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Title |
Antibunching of microwave-frequency photons observed in correlation measurements using linear detectors |
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Journal Article |
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2011 |
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Nature Physics |
Abbreviated Journal |
Nat. Phys. |
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7 |
Issue |
2 |
Pages |
154-158 |
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fromIPMRAS |
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At optical frequencies the radiation produced by a source, such as a laser, a black body or a single-photon emitter, is frequently characterized by analysing the temporal correlations of emitted photons using single-photon counters. At microwave frequencies, however, there are no efficient single-photon counters yet. Instead, well-developed linear amplifiers allow for efficient measurement of the amplitude of an electromagnetic field. Here, we demonstrate first- and second-order correlation function measurements of a pulsed microwave-frequency single-photon source integrated on the same chip with a 50/50 beam splitter followed by linear amplifiers and quadrature amplitude detectors. We clearly observe single-photon coherence in first-order and photon antibunching in second-order correlation function measurements of the propagating fields. |
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RPLAB @ gujma @ |
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835 |
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Author |
Buchanan, Mark |
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Title |
Nothing's impossible |
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2011 |
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Nature Physics |
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Nat. Phys. |
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7 |
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5 |
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RPLAB @ gujma @ |
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839 |
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Author |
Buchanan, Mark |
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Body of evidence |
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2010 |
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Nature Physics |
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Nat. Phys. |
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6 |
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RPLAB @ gujma @ |
Serial |
837 |
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