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Showing 1–4 of 4 results
Advanced filters: Author: Arjen Vaartjes Clear advanced filters

  • At the quantum limit, vacuum fluctuations determine the precision with which a signal can be measured. In this work the authors use a technique known as squeezing to greatly reduce the vacuum fluctuation noise present at microwave frequencies.

    • Arjen Vaartjes
    • Anders Kringhøj
    • Jarryd J. Pla
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • A large nuclear spin has been successfully placed in a Schrödinger cat state, a superposition of its two most widely separated spin coherent states. This can be used as an error-correctable qubit.

    • Xi Yu
    • Benjamin Wilhelm
    • Andrea Morello
    Research
    Nature Physics
    Volume: 21, P: 362-367

  • Qudits, higher-dimensional analogues of qubits, expand quantum state space for information processing using fewer physical units. Here the authors demonstrate control over a 16-dimensional Hilbert space, equivalent to four qubits, using combined electron-nuclear states of a single Sb donor atom in Si.

    • Irene Fernández de Fuentes
    • Tim Botzem
    • Andrea Morello
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9