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Showing 1–6 of 6 results
Advanced filters: Author: Mazyar Mirrahimi Clear advanced filters

  • A quantum-error-correction system is demonstrated in which natural errors due to energy loss are suppressed by encoding a logical state as a superposition of Schrödinger-cat states, which results in the system reaching the ‘break-even’ point, at which the lifetime of a qubit exceeds the lifetime of the constituents of the system.

    • Nissim Ofek
    • Andrei Petrenko
    • R. J. Schoelkopf
    Research
    Nature
    Volume: 536, P: 441-445

  • An artificial Kerr medium has been engineered using superconducting circuits, enabling the observation of the characteristic collapse and revival of a coherent state; this behaviour could, for example, be used in single-photon generation and quantum logic operations.

    • Gerhard Kirchmair
    • Brian Vlastakis
    • R. J. Schoelkopf
    Research
    Nature
    Volume: 495, P: 205-209

  • Implementing full quantum error correction incurs a significant hardware overhead. Here, the authors propose a quantum computing architecture combining superconducting cat qubits with 2D local LDPC codes, featuring low overhead and ease of implementation.

    • Diego Ruiz
    • Jérémie Guillaud
    • Christophe Vuillot
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • Qubit-cavity entanglement can be used for quantum information processing and for investigating the quantum-to-classical transition with high control. Here, the authors characterize the entanglement between an artificial atom and a cat state and its susceptibility to decoherence through Bell test witnesses.

    • Brian Vlastakis
    • Andrei Petrenko
    • R. J. Schoelkopf
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • The choice of the physical system that represents a qubit can help reduce errors. Encoding them in the quadrature space of a superconducting resonator leads to exponentially reduced bit-flip rates, while phase-flip errors increase only linearly.

    • Raphaël Lescanne
    • Marius Villiers
    • Zaki Leghtas
    Research
    Nature Physics
    Volume: 16, P: 509-513