论文标题
快速大规模捕获的离子量子计算的二维体系结构
A two-dimensional architecture for fast large-scale trapped-ion quantum computing
论文作者
论文摘要
量子计算机的构建基块已在中小型系统中证明。作为领先的平台之一，被困的离子系统引起了广泛的关注。该系统中的一个重大挑战是将快速的高保真门与离子陷阱制造中的可扩展性和便利性相结合。在这里，我们提出了一个用于大规模量子计算的体系结构，其二维原子离子阵列在如此较大的距离处被困，这对于离子陷阱制造很方便，但通常认为对于量子计算不适合，因为传统的门太慢。使用较远的羔羊区区域外的门操作，我们表明可以在任何大离子阵列中实现快速而健壮的纠缠门。栅极操作在本质上是平行的，与热噪声是强大的，它与提出的架构的高速和可扩展性一起使该方法成为大规模量子计算的吸引力。
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.
