论文标题
走向宽阔的量子门
Towards Quantum Gates with Wide Operating Margins
论文作者
论文摘要
当前量子组件的狭窄操作边缘阻碍了扩展量子计算硬件。在这里，我们引入了一个复合量子量和门方案，该方案通过使用晶体管样非线性来抑制环境噪声和控制信号缺陷的影响，从而实现了宽阔的边缘。这是通过基于反协议的两体相互作用的子系统代码的绝热变形来实现的。我们专注于一种资源效能的变化，该变化利用了偏差的噪声并保留了栅极操作下的偏差。作为概念证明，我们介绍了超导电路的模拟，该电路证明了该方法的核心要素，并讨论了实验实施的挑战。
Scaling up quantum computing hardware is hindered by the narrow operating margins of current quantum components. Here, we introduce a composite qubit and gate scheme that achieves wide margins by use of transistor-like nonlinearities to suppress the effects of both ambient noise and control signal imperfections. This is accomplished by adiabatic deformation of subsystem codes based on anti-commuting two-body interactions. We focus on a resource-effcient variation that exploits biased noise and preserves bias under gate operation. As a proof of concept, we present simulations of a superconducting circuit that demonstrates core elements of the approach and discuss the challenges of experimental implementation.
