Finite-size analysis of eight-state continuous-variable quantum key distribution with the linear optics cloning machine<xref rid="cpb_27_9_090307_fn1" ref-type="fn">*</xref><fn id="cpb_27_9_090307_fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61379153 and 61572529).</p></fn>

Finite-size analysis of eight-state continuous-variable quantum key distribution with the linear optics cloning machine**

Project supported by the National Natural Science Foundation of China (Grant Nos. 61379153 and 61572529).

Zhang Hang, Mao Yu, Huang Duan, Guo Ying, Wu Xiaodong, Zhang Ling^†

(color online) The EB scheme for the eight-state CVQKD protocol with LOCM operation. λ and τ are two critical parameters of LOCM. Alice randomly prepares one of the eight-state discrete-modulated states and sends it to Bob through the unsecure quantum channel controlled by an eavesdropper, Eve. Additionally, an LOCM is placed in the input of Bob’s apparatus. Bob detects the received mode to derive a sequence of bits shared with Alice by using the heterodyne detector.