Spin manipulation in semiconductor quantum dots qubit<xref rid="cpb_27_9_090308_fn1" ref-type="fn">*</xref><fn id="cpb_27_9_090308_fn1"><label>*</label><p>Project supported by the National Key R&D Program of China (Grant No. 2016YFA0301700), the National Natural Science Foundation of China (Grant Nos. 11674300, 61674132, 11575172, and 11625419), and the Fundamental Research Fund for the Central Universities, China.</p></fn>

Spin manipulation in semiconductor quantum dots qubit**

Project supported by the National Key R&D Program of China (Grant No. 2016YFA0301700), the National Natural Science Foundation of China (Grant Nos. 11674300, 61674132, 11575172, and 11625419), and the Fundamental Research Fund for the Central Universities, China.

Wang Ke, Li Hai-Ou, Xiao Ming, Cao Gang^†, Guo Guo-Ping^‡

(color online) Charge stability diagram of double quantum dots acquired by scanning V_G,1, V_G,2. (a) Uncoupled and (b) coupled quantum dots can be transformed reversibly into each other by tuning C_m. C_m is the cross capacitance between the dots. The lines in the diagram are the current signals while sweeping the voltage. (c) Discrete energy level of quantum dots (orbital states). (d) An electron can tunnel in (or out) of the dot with a rate Γ_s (or Γ_d). Panels (a) and (b) are from Ref. [48].