https://scholars.lib.ntu.edu.tw/handle/123456789/607226
Title: | Electron-spin-resonance meanderlines for effective spin control in Si quantum dots for large-scale qubit applications | Authors: | Chang Y.-C Huang I Chen C.-Y Lin M.-J Chen S.-Y JIUN-YUN LI SHIH-YUAN CHEN |
Keywords: | Electric fields;Electron spin resonance spectroscopy;Electrons;Electrospinning;Magnetic moments;Nanocrystals;Quantum optics;Qubits;Semiconductor quantum dots;Silicon wafers;Coherent control;Electron-spin resonance;Large-scales;Meander line;Multiple quantum dots;Resonance line;Si quantum dot;Single qubits;Spin control;Spin qubit;Spin dynamics | Issue Date: | 2021 | Journal Volume: | 119 | Journal Issue: | 24 | Source: | Applied Physics Letters | Abstract: | 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. ? 2021 Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121964899&doi=10.1063%2f5.0072414&partnerID=40&md5=3989862850d81dbc2ff043c442c08e6b https://scholars.lib.ntu.edu.tw/handle/123456789/607226 |
ISSN: | 00036951 | DOI: | 10.1063/5.0072414 |
Appears in Collections: | 電機工程學系 |
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