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Showing 1–4 of 4 results
Advanced filters: Author: T.M. Stace Clear advanced filters

  • III–V semiconductors are promising platform for qubits, but strong coupling to lattice phonons enhances decoherence of qubit states that have a charge dipole. Here, the authors show that a microwave analogue to the Raman effect can lead to rapid dephasing of qubits based on GaAs double quantum dots.

    • J.I. Colless
    • X.G. Croot
    • D.J. Reilly
    Research
    Nature Communications
    Volume: 5, P: 1-6

  • Reaching fundamental noise limits permits optimal extraction of spectroscopic information from an absorption measurement. Here, the authors demonstrate a quantum-limited spectrometer with which they can obtain an extremely accurate measurement of the excited-state hyperfine splitting in Cs.

    • G.-W. Truong
    • J. D. Anstie
    • A. N. Luiten
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-6

  • There is growing evidence that quantum coherence enhances energy transfer through individual photosynthetic light-harvesting protein complexes. This idea is now extended to complicated networks of such proteins and chemical reaction centres. A mathematical analysis reveals that coherence lengths up to 5 nm are possible.

    • A. K. Ringsmuth
    • G. J. Milburn
    • T. M. Stace
    Research
    Nature Physics
    Volume: 8, P: 562-567

  • A quantum system that super-radiates must also exhibit enhanced absorption, but the former always dominates in natural systems. However, by invoking environmental quantum control techniques, Higgins et al.demonstrate that a system can exhibit quantum-enhanced light absorption.

    • K. D. B. Higgins
    • S. C. Benjamin
    • E. M. Gauger
    ResearchOpen Access
    Nature Communications
    Volume: 5, P: 1-7