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Reflection-Zero Waveforms for Selective Loading in Shared-Line Superconducting Qubit Circuits

delete2026-09-01
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PRE
AI
D
Deepanshu Trivedi
A
Aditya Bhowmik
L
Laraib Niaz
A
Alex Krasnok *
DOI:10.1002/qute.70441delete
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摘要

摘要

En 中文
共享微波线路减少了超导处理器中的低温布线,但通过一条线路发送的脉冲驱动的是着装电路而非孤立量子比特。这种网络响应可以反射能量并加载旁观者模式。在本工作中,我们从着装单端口响应的反射零点设计微波波形。一个零点 同时设定了微波载波 和有限的包络上升率 ,因此入射场在加载期间抵消了重新辐射到输入端口的场。一个三量子比特输入-输出模型和对弱非线性约瑟夫森电路的瞬态高级设计系统模拟测试了弱驱动条件下的这种加载规则。与相同载波上的等能量高斯脉冲相比,反射零点波形将目标选择性从0.386–0.484提高到0.842–0.934,并将串扰抑制比从1.185–1.353提高到6.668–18.340。一个十量子比特计算进一步在更大的拥挤共享线路网络中测试了该构造。在有耗电路中,真正的反射零点驱动在提高目标加载的同时,将串扰抑制比从3.84提高到8.45,相对于共轭极驱动。该构造为频分复用超导控制的网络匹配阶段提供了初始包络,并为后续门校准提供了初始包络。
Keyword:
complex-frequency excitation
microwave crosstalk
reflection zeros
selective loading
shared control lines
superconducting qubits

期刊

A
Advanced Quantum Technologies
IF:
4.3
论文数:
470
被引数:
3.2K

机构

F
Florida International University
学者数:
7.4K
论文数: 5.9K
被引数: 1.1W
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