论文标题
无寄生门：闲置状态和纠缠状态之间的受保护开关
Parasitic-free gate: A protected switch between idle and entangled states
论文作者
论文摘要
我们提出了一个门，以切换超导量子对在两体相互作用中进出。该门使用具有调整后参数的可调电路上的交叉共振驱动，而无需累积闲置ZZ相互作用以进行空闲和相互作用的量子位。必须通过量子寄存器扩散错误。我们的详细理论结果表明，这些无错误模式不一定需要很大程度上可调的电路，例如量子器或耦合器的磁调制。我们在弱可调电路上也获得了操作门，并表明它们之间的切换非常快。
We propose a gate to switch superconducting qubit pairs in and out of a two-body interaction. This gate uses cross resonance driving on a tunable circuit with adjusted parameters and without accumulating residual ZZ interaction for idle and interacting qubits. It is imperative that this gate does not spread errors through the quantum register. Our detailed theoretical results show that these error-free modes do not necessarily require largely tunable circuits, such as magnetic modulation of qubits or couplers. We obtain the operational gate on weakly tuneable circuits as well and show that switching between them is remarkably fast.
