论文标题
Xanadu X8处理器上零相梁的变异量子编译的策略
Strategies for variational quantum compiling of a zero-phase beamsplitter on the Xanadu X8 processor
论文作者
论文摘要
在连续变量（CV）统一操作的变分编译的背景下，Xanadu X8处理器的体系结构和参数空间都限制了可行的编译问题的集合和允许的成本函数。在本文中，我们激发了忠实的成本函数，用于与具有真实矩阵元素（即“零相” beamsplitter）的两模式，连续变量的beamsplitter门（即符合X8处理器的约束）。然后在x8上计算此成本函数。尽管处理器有噪音，但我们发现成本函数表现出最佳参数弹性，因此，这种变异编译问题在X8上是可行的。本文的目的部分是在近期CV硬件上报告原则的原则成本函数计算，部分是在更复杂的大型大规模设置中与CV变化编译问题有关的方法。
In the context of variational compiling of a continuous-variable (CV) unitary operation, the architecture and parameter space of the Xanadu X8 processor constrain both the set of feasible compiling problems and the allowed cost functions. In this paper, we motivate a faithful cost function for variational compiling of a two-mode, continuous-variable beamsplitter gate with real matrix elements (i.e., a "zero-phase" beamsplitter) that complies with the constraints of the X8 processor. This cost function is then computed on the X8. Despite the noise in the processor, we find that the cost function exhibits optimum parameter resilience and, therefore, that this variational compiling problem is feasible on the X8. The intent of the paper is partly to report a proof-of-principle cost function calculation on near-term CV hardware, and partly to present methods that may be relevant for CV variational compiling problems in more complicated, large scale settings.
