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de Jong, D. (author), Prosko, C.G. (author), Waardenburg, D.M.A. (author), Han, L. (author), Malinowski, F.K. (author), Krogstrup, P. (author), Kouwenhoven, Leo P. (author), Koski, J.V. (author), Pfaff, W. (author)
Superconducting resonators enable fast characterization and readout of mesoscopic quantum devices. Finding ways to perform measurements of interest on such devices using resonators only is therefore of great practical relevance. We report an experimental investigation of an InAs nanowire multiquantum dot device by probing gigahertz resonators...
journal article 2021
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Pita-Vidal, Marta (author), Bargerbos, A. (author), Yang, C. (author), van Woerkom, D.J. (author), Pfaff, W. (author), Haider, S.N. (author), Krogstrup, Peter (author), Kouwenhoven, Leo P. (author), de Lange, G. (author), Kou, A. (author)
Hybrid superconducting circuits, which integrate nonsuperconducting elements into a circuit quantum electrodynamics (cQED) architecture, expand the possible applications of cQED. Building hybrid circuits that work in large magnetic fields presents even further possibilities, such as the probing of spin-polarized Andreev bound states and the...
journal article 2020
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van Veen, J. (author), de Jong, D. (author), Han, L. (author), Prosko, C.G. (author), Krogstrup, P. (author), Watson, J.D. (author), Kouwenhoven, Leo P. (author), Pfaff, W. (author)
We report direct detection of charge tunneling between a quantum dot and a superconducting island through radio-frequency gate sensing. We are able to resolve spin-dependent quasiparticle tunneling as well as two-particle tunneling involving Cooper pairs. The quantum dot can act as an RF-only sensor to characterize the superconductor addition...
journal article 2019
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de Jong, D. (author), van Veen, J. (author), Binci, L. (author), Singh, A. (author), Krogstrup, P. (author), Kouwenhoven, Leo P. (author), Pfaff, W. (author), Watson, J.D. (author)
Dispersive sensing is a powerful technique that enables scalable and high-fidelity readout of solid-state quantum bits. In particular, gate-based dispersive sensing has been proposed as the readout mechanism for future topological qubits, which can be measured by single electrons tunneling through zero-energy modes. The development of such a...
journal article 2019
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