3D-printing could make it easier to make large quantum computers

As quantum computers get larger, they may become truly useful – 3D-printing a key component of some quantum computers may make it easier to build larger arrays of qubits to make them more powerful

Green light for Europe’s first ion-trap-chip pilot line | Press and Public Relations

China Leads Quantum Computing with Largest Ion Trap Simulation, Led by Duan Luming

China takes a major step in quantum computing with the largest ion trap simulation, achieving new heights in the field. Led by Duan Luming, this breakthrough showcases China's advancements in quantum technology, pushing the boundaries of innovation and research.

RIKEN Selects Quantinuum System Model H1 for Large-Scale Hybrid Quantum–Supercomputing Platform in Japan

Quantinuum will install its H1-Series ion-trap quantum computing technology at RIKEN’s campus in Wako, Saitama.

Trapped-Ion Quantum Computer Now Available in Munich Quantum Valley

The Leibniz Supercomputing Centre announced it is adding another quantum computer for its Quantum Integration Centre.

Russian Scientists Present 16-Qubit Quantum Computer

The Quantum Insider (TQI) is the leading online resource dedicated exclusively to Quantum Computing.

Strategies for practical advantage of fault-tolerant circuit design in noisy trapped-ion quantum computers

Fault-tolerant quantum error correction provides a strategy to protect information processed by a quantum computer against noise which would otherwise corrupt the data. A fault-tolerant universal quantum computer must implement a universal gate set on the logical level in order to perform arbitrary calculations to in principle unlimited precision. We characterize the recent demonstration of a fault-tolerant universal gate set in a trapped-ion quantum computer [Postler et al. Nature 605.7911 (2022)] and identify aspects to improve the design of experimental setups to reach an advantage of logical over physical qubit operation. We show that various criteria to assess the break-even point for fault-tolerant quantum operations are within reach for the ion trap quantum computing architecture under consideration. We analyze the influence of crosstalk in entangling gates for logical state preparation circuits. These circuits can be designed to respect fault tolerance for specific microscopic noise models. We find that an experimentally-informed depolarizing noise model captures the essential noise dynamics of the fault-tolerant experiment, and crosstalk is negligible in the currently accessible regime of physical error rates. For deterministic Pauli state preparation, we provide a fault-tolerant unitary logical qubit initialization circuit, which can be realized without in-sequence measurement and feed-forward of classical information. We show that non-deterministic state preparation schemes for logical Pauli and magic states perform with higher logical fidelity over their deterministic counterparts for the current and anticipated future regime of physical error rates. Our results offer guidance on improvements of physical qubit operations and validate the experimentally-informed noise model as a tool to predict logical failure rates in quantum computing architectures based on trapped ions.