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Showing 1–5 of 5 results
Advanced filters: Author: G. Klimeck Clear advanced filters

  • The valley degree of freedom has been proposed as a means to encode information in a number of condensed-matter systems. Now, detailed scanning tunnelling microscopy measurements are used to spatially resolve the valleys associated with a single donor qubit in silicon.

    • J. Salfi
    • J. A. Mol
    • S. Rogge
    Research
    Nature Materials
    Volume: 13, P: 605-610

  • The ability to change the degree of hybridization of a donor electron state between the coulombic potential of its donor atom and that of a nearby quantum well in a silicon transistor has now been achieved. This is a promising step in the development of atomic-scale quantum control.

    • G. P. Lansbergen
    • R. Rahman
    • S. Rogge
    Research
    Nature Physics
    Volume: 4, P: 656-661

  • Quantum computers will require a large network of coherent qubits, connected in a noise-resilient way. Tosi et al. present a design for a quantum processor based on electron-nuclear spins in silicon, with electrical control and coupling schemes that simplify qubit fabrication and operation.

    • Guilherme Tosi
    • Fahd A. Mohiyaddin
    • Andrea Morello
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-11

  • The presence of multiple minima, or valleys, in the conduction band of group IV semiconductors can be a problem for spin-based quantum computing, but can also enable alternative qubit implementations. Yang et al. demonstrate electrostatic control of the valleys’ energy splitting in a silicon quantum dot.

    • C. H. Yang
    • A. Rossi
    • A. S. Dzurak
    Research
    Nature Communications
    Volume: 4, P: 1-8

  • The goal of quantum simulation is to probe many-body phenomena in controlled systems, but Fermi-Hubbard phenomena are typically hard to simulate in cold atomic. Here, the authors simulate them with subsurface dopants in silicon, achieving a low effective temperature and reading out spin states with STM.

    • J. Salfi
    • J. A. Mol
    • S. Rogge
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6