Building blocks of quantum computers have been demonstrated in small to intermediate-scale systems. As one of the leading platforms, the trapped ion system has attracted wide attention. A significant challenge in this system is to combine fast high-fidelity gates with scalability and convenience in ion trap fabrication. Here we propose an architecture for large-scale quantum computing with a two-dimensional array of atomic ions trapped at such large distance which is convenient for ion-trap fabrication but usually believed to be unsuitable for quantum computing as the conventional gates would be too slow. Using gate operations far outside of the Lamb-Dicke region, we show that fast and robust entangling gates can be realized in any large ion arrays. The gate operations are intrinsically parallel and robust to thermal noise, which, together with their high speed and scalability of the proposed architecture, makes this approach an attractive one for large-scale quantum computing.

中文翻译：

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用于快速大规模俘获离子量子计算的二维架构

量子计算机的构建块已在中小型系统中得到证明。作为领先的平台之一，俘获离子系统引起了广泛关注。该系统的一个重大挑战是将快速高保真门与离子阱制造中的可扩展性和便利性相结合。在这里，我们提出了一种用于大规模量子计算的架构，其中原子离子的二维阵列被捕获在如此远的距离上，这便于离子阱的制造，但通常认为不适合量子计算，因为传统的门太慢了. 使用远离 Lamb-Dicke 区域的门操作，我们表明可以在任何大型离子阵列中实现快速而强大的纠缠门。门操作本质上是并行的，并且对热噪声具有鲁棒性，其中，