T
Tim Duty
Researcher at University of New South Wales
Publications - 71
Citations - 4339
Tim Duty is an academic researcher from University of New South Wales. The author has contributed to research in topics: Josephson effect & Superconductivity. The author has an hindex of 31, co-authored 68 publications receiving 4004 citations. Previous affiliations of Tim Duty include D-Wave Systems & University of Queensland.
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Journal ArticleDOI
Observation of the dynamical Casimir effect in a superconducting circuit
Christopher Wilson,Göran Johansson,Arsalan Pourkabirian,Michael Roger Andre Simoen,J. R. Johansson,Tim Duty,Franco Nori,Per Delsing +7 more
TL;DR: The dynamical Casimir effect is observed in a superconducting circuit consisting of a coplanar transmission line with a tunable electrical length and two-mode squeezing in the emitted radiation is detected, which is a signature of the quantum character of the generation process.
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Neural sources involved in auditory target detection and novelty processing: An event-related fMRI study
TL;DR: In this paper, the authors used event-related functional magnetic resonance imaging (erfMRI) techniques to examine the cerebral sites involved with target detection and novelty processing of auditory stimuli.
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Tuning the field in a microwave resonator faster than the photon lifetime
Martin Sandberg,Christopher Wilson,Fredrik Persson,Thilo Bauch,Göran Johansson,Vitaly Shumeiko,Tim Duty,Per Delsing +7 more
TL;DR: In this paper, a tunable superconducting transmission line resonator with high quality factors and a large tuning range (several hundred megahertz) has been proposed, which can change the frequency of a few-photon field on a time scale orders of magnitude faster than the photon lifetime of the resonator.
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Microwave determination of the quasiparticle scattering time in YBa2Cu3O6.95.
D. A. Bonn,Ruixing Liang,T. M. Riseman,D. J. Baar,D. C. Morgan,Kuan Zhang,Pinder Dosanjh,Tim Duty,A. MacFarlane,G. D. Morris,J. H. Brewer,Walter Hardy,Catherine Kallin,A. J. Berlinsky +13 more
TL;DR: Microwave surface resistance measurements on two very-high-quality YBa2Cu3O6.95 crystals are reported, inferring that λ2(0)/λ2(T) is well approximated by the simple function 1-t2, and that the low-temperature data are incompatible with the existence of an s-wave, BCS-like gap.
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Current measurement by real-time counting of single electrons
TL;DR: A fundamentally new way to measure extremely small currents, without offset or drift, is reported, which is based on electron counting, and is self-calibrated, as the measured frequency is related to the current only by a natural constant.