A new strategy to implement a high-fidelity mixed-species entangling gate

Phys.org  September 22, 2020
One of the greatest challenges in the development of trapped ion quantum computers is scalability because adding new qubits to a quantum computing system often results in a rapid decrease in performance, as it introduces new errors and makes it harder to interact with a single qubit without affecting some of the others. Researchers in the UK used modularization and optical networking to have ions in separate ion traps and vacuum systems, which are only connected through optical fibers. This approach limits crosstalk between qubits, retaining only interactions that are desirable and can be controlled by the researchers. The fidelity is comparable to that of the best same-species gates and consistent with known sources of error…read more. TECHNICAL ARTICLE 

Posted in Quantum computers and tagged , .

Leave a Reply