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Showing 1–9 of 9 results
Advanced filters: Author: J. J. Longdell Clear advanced filters

  • Solid-state quantum devices can suffer from decoherence caused by fluctuating electron spins in the surrounding material. Operating in a regime where the electron spins become magnetically ordered produces substantially longer coherence times.

    • Masaya Hiraishi
    • Zachary H. Roberts
    • Jevon J. Longdell
    Research
    Nature Physics
    Volume: 21, P: 1112-1117

  • Deterministic control of the gain–loss balance in non-Hermitian systems remains challenging. A magnonic hybrid platform is now shown to enable this and, hence, coherently control excitations by leveraging an exceptional point.

    • N. J. Lambert
    • A. Schumer
    • H. G. L. Schwefel
    Research
    Nature Physics
    Volume: 21, P: 1570-1577

  • A quantum memory would enable storage and retrieval of a quantum state of light without corrupting the information it carries. Previous devices have had low efficiencies of less than 17 per cent, and used weak quantum states with an average photon number of around one. Now a solid-state quantum memory is described with an efficiency of up to 69 per cent, which performs better than a classical device for bright states of up to 500 photons.

    • Morgan P. Hedges
    • Jevon J. Longdell
    • Matthew J. Sellars
    Research
    Nature
    Volume: 465, P: 1052-1056

  • An essential ingredient of future worldwide quantum communication is the generation of long-lived entangled quantum states; a coherence time of six hours is now reported for optically addressable nuclear spins in europium-doped yttrium orthosilicate.

    • Manjin Zhong
    • Morgan P. Hedges
    • Matthew J. Sellars
    Research
    Nature
    Volume: 517, P: 177-180

  • Precise and arbitrary control of an optical field that preserves optical coherence is an important requisite for many proposed photonic technologies. Here, a coherent optical memory based on photon echoes induced through controlled reversible inhomogeneous broadening is presented. The scheme allows storage of multiple pulses of light which can be arbitrarily recalled, time-stretched or split.

    • Mahdi Hosseini
    • Ben M. Sparkes
    • Ben C. Buchler
    Research
    Nature
    Volume: 461, P: 241-245

  • Long distance interfaces between superconducting quantum information processing nodes would require coherent, efficient and low-noise microwave-to-optical conversion. Here, the authors use Yb ion ensembles in yttrium orthovanadate to demonstrate a transducer with the potential to fulfill these requirements.

    • John G. Bartholomew
    • Jake Rochman
    • Andrei Faraon
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-6

  • Dual frequency combs are a powerful tool for a range of optical measurements and technologies. The authors here generate orthogonally polarized dual combs with exceptionally high relative stability.

    • Nicholas J. Lambert
    • Luke S. Trainor
    • Harald G. L. Schwefel
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-8