Výsledky vyhledávání - "Fenton, Jonathan"

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Controllable tunnelling of single flux-quanta mediated by quantum phase-slip in disordered superconducting loops

Autor: Potter, Jamie A., Fenton, Jonathan C., Warburton, Paul A.

Quantum phase-slip (QPS) is the exact dual to the well-known Josephson effect. Although there are numerous proposals for applications of QPS devices, experimental work to develop these remains in the relatively early stages. Significant barriers to e

Externí odkaz: http://arxiv.org/abs/2301.04411

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Nonlinear quantum processes in superconducting resonators terminated by neon-focused-ion-beam-fabricated superconducting nanowires

Autor: Potter, Jamie A., Kennedy, Oscar W., Fenton, Jonathan C., Warburton, Paul A.

Publikováno v: IEEE Transactions on Applied Superconductivity, vol. 30, no. 7, pp. 1-4, Oct. 2020, Art no. 1100704

We have used a neon focused-ion-beam to fabricate both nanoscale Nb Dayem bridges and NbN phase-slip nanowires located at the short-circuited end of quarter-wavelength coplanar waveguide resonators. The Dayem bridge devices show flux-tunability and i

Externí odkaz: http://arxiv.org/abs/2011.02437

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Tunable Nb superconducting resonators based upon a Ne-FIB-fabricated constriction nanoSQUID

Autor: Kennedy, Oscar W., Burnett, Jonathan, Fenton, Jonathan C., Constantino, Nicolas G. N., Warburton, Paul A., Morton, John J. L., Dupont-Ferrier, Eva

Publikováno v: Phys. Rev. Applied 11, 014006 (2019)

Hybrid superconducting--spin systems offer the potential to combine highly coherent atomic quantum systems with the scalability of superconducting circuits. To fully exploit this potential requires a high quality-factor microwave resonator, tunable i

Externí odkaz: http://arxiv.org/abs/1807.00582

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Low-Loss Superconducting Nanowire Circuits Using a Neon Focused Ion Beam

Autor: Burnett, Jonathan, Sagar, James, Kennedy, Oscar W., Warburton, Paul A., Fenton, Jonathan C.

Publikováno v: Phys. Rev. Applied 8, 014039 (2017)

We present low-temperature measurements of low-loss superconducting nanowire-embedded resonators in the low-power limit relevant for quantum circuits. The superconducting resonators are embedded with superconducting nanowires with widths down to 20nm

Externí odkaz: http://arxiv.org/abs/1708.02502

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