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Showing 1–13 of 13 results
Advanced filters: Author: I. L. Aleiner Clear advanced filters

  • An experimental investigation of the dynamics of the spin ½ Floquet XXZ model finds bound states as predicted, and also robustness to noise and non-integrability when theoretical descriptions start to fail.

    • A. Morvan
    • T. I. Andersen
    • P. Roushan
    ResearchOpen Access
    Nature
    Volume: 612, P: 240-245

  • In one-dimensional systems, phase transitions at finite temperature are deemed impossible, because long-range correlations are destroyed by thermal fluctuations. Theoretical work now shows that, nonetheless, a phase transition at finite temperature can occur in a one-dimensional gas of weakly interacting bosons in a random environment

    • I. L. Aleiner
    • B. L. Altshuler
    • G. V. Shlyapnikov
    Research
    Nature Physics
    Volume: 6, P: 900-904

  • A superconducting diode effect was recently reported in Nb/V/Ta superlattices, but the mechanism is not yet clear. Here, the authors study non-reciprocal critical current in Al/InAs nanowires and propose a generic extrinsic mechanism involving field-generated diamagnetic currents, which may explain the earlier Nb/V/Ta results.

    • Ananthesh Sundaresh
    • Jukka I. Väyrynen
    • Leonid P. Rokhinson
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Experimental measurements of high-order out-of-time-order correlators on a superconducting quantum processor show that these correlators remain highly sensitive to the quantum many-body dynamics in quantum computers at long timescales.

    • Dmitry A. Abanin
    • Rajeev Acharya
    • Nicholas Zobrist
    ResearchOpen Access
    Nature
    Volume: 646, P: 825-830

  • In a quantum simulation of a (2+1)D lattice gauge theory using a superconducting quantum processor, the dynamics of strings reveal the transition from deconfined to confined excitations as the effective electric field is increased.

    • T. A. Cochran
    • B. Jobst
    • P. Roushan
    ResearchOpen Access
    Nature
    Volume: 642, P: 315-320

  • By implementing random circuit sampling, experimental and theoretical results establish the existence of transitions to a stable, computationally complex phase that is reachable with current quantum processors.

    • A. Morvan
    • B. Villalonga
    • S. Boixo
    ResearchOpen Access
    Nature
    Volume: 634, P: 328-333

  • It is hoped that simulations of molecules and materials will provide a near-term application of quantum computers. A study of the performance of error mitigation highlights the obstacles to scaling up these calculations to practically useful sizes.

    • T. E. O’Brien
    • G. Anselmetti
    • N. C. Rubin
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 1787-1792

  • A unitary protocol for braiding projective non-Abelian Ising anyons in a generalized stabilizer code is implemented on a superconducting processor, allowing for verification of their fusion rules and realization of their exchange statistics.

    • T. I. Andersen
    • Y. D. Lensky
    • P. Roushan
    ResearchOpen Access
    Nature
    Volume: 618, P: 264-269

  • As a blueprint for high-precision quantum simulation, an 18-qubit algorithm that consists of more than 1,400 two-qubit gates is demonstrated, and reconstructs the energy eigenvalues of the simulated one-dimensional wire to a precision of 1 per cent.

    • C. Neill
    • T. McCourt
    • V. Smelyanskiy
    Research
    Nature
    Volume: 594, P: 508-512

  • Two below-threshold surface code memories on superconducting processors markedly reduce logical error rates, achieving high efficiency and real-time decoding, indicating potential for practical large-scale fault-tolerant quantum algorithms.

    • Rajeev Acharya
    • Dmitry A. Abanin
    • Nicholas Zobrist
    ResearchOpen Access
    Nature
    Volume: 638, P: 920-926