Measurement of Spin Singlet-Triplet Qubit in Quantum Dots Using Superconducting Resonator  

作　　者：Xing-Yu Zhu Tao Tu Ao-Lin Guo Zong-Quan Zhou Guang-Can Guo 朱行宇;涂涛;郭奥林;周宗权;郭光灿(Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026)

机构地区：[1]Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026

出　　处：《Chinese Physics Letters》2020年第2期6-10,共5页中国物理快报（英文版）

基　　金：the National Basic Research Programme of China(No.2017YFA0304100);the National Natural Science Foundation of China(No.11974336).

摘　　要：The spin qubit in quantum dots is one of the leading platforms for quantum computation.A crucial requirement for scalable quantum information processing is the high efficient measurement.Here we analyze the measurement process of a quantum-dot spin qubit coupled to a superconducting transmission line resonator.Especially,the phase shift of the resonator is sensitive to the spin states and the gate operations.The response of the resonator can be used to measure the spin qubit efficiently,which can be extend to read out the multiple spin qubits in a scalable solid-state quantum processor.

关 键 词：computation. quantum measurement. 

分 类 号：O471.1[理学—半导体物理] TN751.2[理学—物理]