论文标题
量子退火，用电容折叠的通量吨位
Quantum annealing with capacitive-shunted flux qubits
论文作者
论文摘要
量子退火（QA）为我们提供了一种解决组合优化问题的方法。在先前的QA演示中，使用了超导通量Qubit（FQ）。但是，这些示范中的通量量子位的连贯性时间很短，例如数十秒。为了利用量子属性，有必要在更连贯时间的情况下使用另一个量子。在这里，我们建议使用电容偏移的通量量子数分（CSFQ）进行质量检查。 CSFQ的相干时间比QA中使用的FQ更好几个数量级。从理论上讲，尽管由于CSFQ之间的相互作用的形式和强度很难使用CSFQ执行常规质量检查，但即使使用当前技术，也可以使用CSFQ实现基于自旋锁的质量质量标准。我们的结果铺平了实现实用质量质量检查的道路，该质量质量质量QA通过长期量子量利用量子优势。
Quantum annealing (QA) provides us with a way to solve combinatorial optimization problems. In the previous demonstration of the QA, a superconducting flux qubit (FQ) was used. However, the flux qubits in these demonstrations have a short coherence time such as tens of nano seconds. For the purpose to utilize quantum properties, it is necessary to use another qubit with a better coherence time. Here, we propose to use a capacitive-shunted flux qubit (CSFQ) for the implementation of the QA. The CSFQ has a few order of magnitude better coherence time than the FQ used in the QA. We theoretically show that, although it is difficult to perform the conventional QA with the CSFQ due to the form and strength of the interaction between the CSFQs, a spin-lock based QA can be implemented with the CSFQ even with the current technology. Our results pave the way for the realization of the practical QA that exploits quantum advantage with long-lived qubits.
