Continuous-variable quantum key distribution based on continuous random basis choice<xref rid="cpb_27_7_070305fn1" ref-type="fn">*</xref><fn id="cpb_27_7_070305fn1"> <label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61332019, 61671287, and 61631014), Northwest University Doctorate Dissertation of Excellence Funds, China (Grant No. YYB17022), and the National Key Research and Development Program, China (Grant No. 2016YFA0302600).</p></fn>

Continuous-variable quantum key distribution based on continuous random basis choice* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 61332019, 61671287, and 61631014), Northwest University Doctorate Dissertation of Excellence Funds, China (Grant No. YYB17022), and the National Key Research and Development Program, China (Grant No. 2016YFA0302600).

Liu Weiqi¹, Peng Jinye¹, Huang Peng^{2, †}, Wang Shiyu², Wang Tao², Zeng Guihua^{1, 2, ‡}

(color online) The P&M model of the GMCS QKD scheme based on the continuous random basis choice. (a) The schematic model. A represents the amplitude modulator (AM), Φ represents the phase modulator, and RNG represents the random numbers generator. (b) The modulation module at Bob’s side, which can be equivalent to the dotted box in (a). θ can be equal to the binary random basis choice 0 or π/2 with the phase shifts θ or θ − π/2. PS means the phase shifts.