量子位元
旋转
量子点
自旋工程
自旋(空气动力学)
凝聚态物理
相位量子位
相干控制
物理
量子计算机
电子
电子顺磁共振
电荷量子位
磁通量子比特
微波食品加热
脉冲电子顺磁共振
自旋极化
光电子学
量子
核磁共振
量子力学
自旋回波
磁共振成像
放射科
热力学
医学
作者
Yao-Chun Chang,Ian Huang,Chiung-Yu Chen,Min-Jui Lin,Shih‐Yuan Chen,Jiun‐Yun Li
摘要
Coherent control of electron spins in multiple quantum dots (QDs) is critical for realizing large-scale spin qubits. The manipulation of electron spins in Si QDs can be achieved by electron spin resonance (ESR). While the effective spin control over a single qubit has been demonstrated, the architecture of ESR lines for large-scale spin qubits has yet to be demonstrated. In this paper, we propose an ESR meanderline for large-scale Si QDs. Simulation results show that magnetic fields can be effectively enhanced with low electric fields using a meanderline, enabling high-fidelity and low-noise control over electron spins in a 50-qubit system. Reflection coefficients of ESR meanderlines by on-wafer microwave measurements show low loss (−7 dB) for a 3-qubit device at a frequency range of 10 to 50 GHz.
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