光活性自旋的串扰抑制微电子控制
Crosstalk-mitigated microelectronic control for optically-active spins
AI总结：
本文提出一种基于晶圆厂微电子技术的串扰抑制方案，在小于100 μm间距下无需量子比特失谐即可寻址固态自旋，通过主动消除将相邻位点的微波串扰降至不可检测水平，有效提升了紧密排列量子比特的自旋相干性，为跨量子平台的可扩展控制迈出一步。
摘要：
为了利用量子比特的亚纳米尺寸进行大规模量子信息处理，相应的控制架构需要兼具能量和空间效率，单元电子学的片上占用面积理想情况下应为微米级。然而，紧密排列的量子比特的自旋相干性会受到来自相邻控制位点的微波串扰的严重破坏。在此，我们提出了一种使用晶圆厂微电子技术的串扰抑制方案，以在小于100 μm的间距下寻址固态自旋，而无需进行量子比特失谐。使用纳米金刚石中的氮-空位中心作为量子比特原型，我们首先展示了在毫瓦级微波功率下的10 MHz拉比振荡。通过实施主动消除，我们随后证明了来自相邻晶格位点的串扰场可被降低至不可检测的水平。最后，我们扩展该方案以展示增强的量子比特控制，或等效地，展示在串扰抑制下的自旋相干性。我们的结果与集成光学兼容，展现了利用硅微电子学跨量子平台实现可扩展控制的一步。
英文摘要：
To exploit the sub-nanometre dimensions of qubits for large-scale quantum information processing, corresponding control architectures require both energy and space efficiency, with the on-chip footprint of unit-cell electronics ideally micron-scale. However, the spin coherence of qubits in close packing is severely deteriorated by microwave crosstalk from neighbouring control sites. Here, we present a crosstalk-mitigation scheme using foundry microelectronics, to address solid-state spins at sub-100 $μ$m spacing without the need for qubit-detuning. Using nitrogen-vacancy centres in nanodiamonds as qubit prototypes, we first demonstrate 10 MHz Rabi oscillation at milliwatts of microwave power. Implementing the active cancellation, we then prove that the crosstalk field from neighbouring lattice sites can be reduced to undetectable levels. We finally extend the scheme to show increased qubit control, or effectively, the spin coherence under crosstalk mitigation. Compatible with integrated optics, our results present a step towards scalable control across quantum platforms using silicon microelectronics.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
