论文标题
混合拓扑纵向transmon值
The Hybrid Topological Longitudinal Transmon Qubit
论文作者
论文摘要
我们引入了一种新的混合量子量子，该量子量子由Majorana Qubit与纵向耦合到谐振器相互作用。为此，我们将纵向跨量子标准配备了拓扑准粒子，并由一系列异质结构纳米线支持，并在Majorana Qubit与谐振器和自由度的谐振器和转基因之间得出了电荷和基于阶段的相互作用。检查电荷耦合时，我们证明了Majorana的自我充电可以通过明智的充电偏移选择来消除，从而保持Majorana变性，无论准粒子的空间布置和奇偶校验配置如何。我们执行分析和数值计算以得出有效的Qubit量相互作用元素，并讨论其对状态读数和量子误差校正的潜在效用。此外，我们发现某些相互作用在很大程度上取决于整体超导均衡性，这可能提供了一种直接的机制来表征有害的准粒子中毒过程。
We introduce a new hybrid qubit consisting of a Majorana qubit interacting with a transmon longitudinally coupled to a resonator. To do so, we equip the longitudinal transmon qubit with topological quasiparticles, supported by an array of heterostructure nanowires, and derive charge- and phase-based interactions between the Majorana qubit and the resonator and transmon degrees of freedom. Inspecting the charge coupling, we demonstrate that the Majorana self-charging can be eliminated by a judicious choice of charge offset, thereby maintaining the Majorana degeneracy regardless of the quasiparticles spatial arrangement and parity configuration. We perform analytic and numerical calculations to derive the effective qubit-qubit interaction elements and discuss their potential utility for state readout and quantum error correction. Further, we find that select interactions depend strongly on the overall superconducting parity, which may provide a direct mechanism to characterize deleterious quasiparticle poisoning processes.
