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Showing 1–11 of 11 results
Advanced filters: Author: Matias Urdampilleta Clear advanced filters

  • Large-footprint, low-sensitivity charge sensors hinder scaling semiconductor quantum dot arrays for quantum computation. Here the authors present a potentially scalable approach using multiplexed gate-based readout and operation in a foundry-fabricated quantum dot array, demonstrating single-electron occupancy.

    • Pierre Hamonic
    • Martin Nurizzo
    • Matias Urdampilleta
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-7

  • Electronic excitations in low-dimensional quantum nanoelectronic devices are collective waves that are strongly affected by the Coulomb interaction. Here, the authors demonstrate that they are able to prepare these collective excitations down to the single electron level and control their propagation.

    • Gregoire Roussely
    • Everton Arrighi
    • Christopher Bäuerle
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • The emergence of universal collective behaviour is demonstrated through collisions of electron droplets containing up to five particles, which exhibit strong all-body correlations characteristic of a Coulomb liquid.

    • Jashwanth Shaju
    • Elina Pavlovska
    • Hermann Sellier
    ResearchOpen Access
    Nature
    Volume: 642, P: 928-933

  • The development of electronic flying qubits requires the ability to generate and control single-electron excitations. Here the authors demonstrate quantum coherence of ultrashort single-electron plasmonic pulses in an electronic Mach-Zehnder interferometer, revealing a non-adiabatic regime at high frequencies.

    • Seddik Ouacel
    • Lucas Mazzella
    • Christopher Bäuerle
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Gate reflectometry on an ancillary dot coupled to an electron reservoir is used to read the spin of a qubit in a CMOS device in a single shot with an average fidelity above 98% within 0.5 ms.

    • Matias Urdampilleta
    • David J. Niegemann
    • Tristan Meunier
    Research
    Nature Nanotechnology
    Volume: 14, P: 737-741

  • Collisions between two individual electrons in a quantum nanoelectronic circuit revealed a mutual interaction fully mediated by Coulomb repulsion—an essential building block for two-qubit logic implementations with flying electrons.

    • Junliang Wang
    • Hermann Edlbauer
    • Christopher Bäuerle
    Research
    Nature Nanotechnology
    Volume: 18, P: 721-726

  • Manipulation of multiple connected quantum objects is mandatory for any scalable quantum information platform. Based on finely tuned virtual gate control, the integration of nearest-neighbour coupled semiconductor quantum dots in a 3 × 3 array enables 2D coherent spin control.

    • Pierre-André Mortemousque
    • Emmanuel Chanrion
    • Tristan Meunier
    Research
    Nature Nanotechnology
    Volume: 16, P: 296-301

  • On-chip, long-distance entanglement of spin qubits in semiconductors could enable connectivity of quantum core units for networked quantum computing. The moving trapping potential of a surface acoustic wave can subsequently displace two entangled spins while preserving entanglement over a separation of 6 μm.

    • Baptiste Jadot
    • Pierre-André Mortemousque
    • Tristan Meunier
    Research
    Nature Nanotechnology
    Volume: 16, P: 570-575

  • Surface acoustic waves are promising candidates to convey flying qubits through semiconductor circuits. The authors investigate the central building block of such a circuit in an experiment and present a route to realise quantum logic gates with flying electrons that are surfing on a sound-wave.

    • Shintaro Takada
    • Hermann Edlbauer
    • Christopher Bäuerle
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-9