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Showing 1–8 of 8 results
Advanced filters: Author: Lukas Postler Clear advanced filters

  • A deterministic correction of errors caused by qubit loss or leakage outside the computational space is demonstrated in a trapped-ion experiment by using a minimal instance of the topological surface code.

    • Roman Stricker
    • Davide Vodola
    • Rainer Blatt
    Research
    Nature
    Volume: 585, P: 207-210

  • Quantum error correction is essential for reliable quantum computing, but no single code supports all required fault-tolerant gates. The demonstration of switching between two codes now enables universal quantum computation with reduced overhead.

    • Ivan Pogorelov
    • Friederike Butt
    • Thomas Monz
    Research
    Nature Physics
    Volume: 21, P: 298-303

  • Qubit-based simulations of gauge theories are challenging as gauge fields require high-dimensional encoding. Now a quantum electrodynamics model has been demonstrated using trapped-ion qudits, which encode information in multiple states of ions.

    • Michael Meth
    • Jinglei Zhang
    • Martin Ringbauer
    ResearchOpen Access
    Nature Physics
    Volume: 21, P: 570-576

  • Demonstrations of quantum advantage relying on sampling hard-to-compute probability distributions are plagued by difficulties in efficiently confirming the correctness of their output, which is known as the verification problem. Here, the authors use a trapped-ion platform to demonstrate efficient verification of quantum random sampling in measurement-based quantum computing.

    • Martin Ringbauer
    • Marcel Hinsche
    • Dominik Hangleiter
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • Qudits are generalizations of qubits that have more than two states, which gives them a performance advantage in some quantum algorithms. The operations needed for a universal qudit processor have now been demonstrated using trapped ions.

    • Martin Ringbauer
    • Michael Meth
    • Thomas Monz
    Research
    Nature Physics
    Volume: 18, P: 1053-1057

  • A fault-tolerant, universal set of single- and two-qubit quantum gates is demonstrated between two instances of the seven-qubit colour code in a trapped-ion quantum computer.

    • Lukas Postler
    • Sascha Heuβen
    • Thomas Monz
    Research
    Nature
    Volume: 605, P: 675-680

  • Two logical qubits are encoded in ensembles of four physical qubits through the surface code, then entangled by lattice surgery, which is a protocol for carrying out fault-tolerant operations.

    • Alexander Erhard
    • Hendrik Poulsen Nautrup
    • Thomas Monz
    Research
    Nature
    Volume: 589, P: 220-224

  • Checking the quality of operations of quantum computers in a reliable and scalable way is still an open challenge. Here, the authors show how to characterise multi-qubit operations in a way that scales favourably with the system’s size, and demonstrate it on a 10-qubit ion-trap device.

    • Alexander Erhard
    • Joel J. Wallman
    • Rainer Blatt
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7