论文标题
Rydberg Atom图的量子断层扫描图
Quantum tomography of Rydberg atom graphs by configurable ancillas
论文作者
论文摘要
可伸缩量子系统的多体量子状态的层析成像重建在量子计算技术中至关重要。但是，使用层压正交碱基测量的常规方法需要精确和单个量子控制，这些控制通常在实验上令人生畏。在这里，我们建议作为一种量子力学强大的替代方案，使用可构型的杂物，可连续可调的相互作用可以生成独立的基础测量在层压层上，以足以对感兴趣系统的量子状态重建。对Rydberg Atom阵列进行了实验测试，以$ n $ $ w $状态进行，其中结果表明该方法的可靠高保真全量子状态重建。
Tomographic reconstruction of the many-body quantum state of a scalable qubit system is of paramount importance in quantum computing technologies. However, conventional approaches which use tomographically orthogonal base measurements require precise and individual qubit controls which are often experimentally daunting. Here, we propose, as a quantum-mechanically robust alternative, to use configurable ancillas of which the continuously-tunable interactions can generate independent base measurements tomographically sufficient for the quantum state reconstruction of the system of interest. Experimental tests are performed for Rydberg atom arrays in $N$-body $W$ states, of which the results demonstrate reliable high-fidelity full quantum state reconstruction of the proposed method.
