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Showing 1–6 of 6 results
Advanced filters: Author: Claes Thelander Clear advanced filters

  • Quantum technology concepts rely on efficient control of the system state, such as the electron spin. Here the authors present a mechanism for spin and orbital manipulation based on hybridizing quantum dot states at two points inside InAs nanowires, resulting in tunable quantum rings with giant controllable g-factors.

    • H. Potts
    • I.–J. Chen
    • C. Thelander
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Similar to the hybridisation of atoms to molecules, or semiconductor quantum dots to chains of artificial atoms, the authors demonstrate the hybridization of discrete superconducting subgap states on artificially grown semiconductor islands to larger quantum objects, eventually coherently spanning the complete semiconductor between two superconducting reservoirs.

    • Christian Jünger
    • Sebastian Lehmann
    • Andreas Baumgartner
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-6

  • Efficient conversion of microwave photons into electrical current would enable several applications in quantum technologies, especially if one could step outside of the gated-time regime. Here, the authors demonstrate continuous-time microwave photoconversion in double quantum dots with 6% efficiency.

    • Waqar Khan
    • Patrick P. Potts
    • Ville F. Maisi
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Qubits face a trade-off between drive strength and coherence due to shared coupling paths. Here, the authors show that, using spin-orbit interactions, a sweet spot emerges that optimizes both control speed and dephasing, mitigating this fundamental limitation.

    • Jann H. Ungerer
    • Alessia Pally
    • Christian Schönenberger
    ResearchOpen Access
    Communications Physics
    Volume: 8, P: 1-9

  • The superconducting proximity effect is the basis for topologically non trivial states in semiconducting nanowires, potentially useful for quantum information technologies. Here, the authors use integrated quantum dots as spectrometers to investigate the proximity effect, paving the way to systematic studies of subgap states.

    • Christian Jünger
    • Andreas Baumgartner
    • Christian Schönenberger
    ResearchOpen Access
    Communications Physics
    Volume: 2, P: 1-8