TY - Chin. Phys. B A1 - Shuai-Shuai Zhang(张帅帅), Qi Shu(祁舒), Lan Zhou(周澜), Yu-Bo Sheng(盛宇波) T1 - Multi-copy entanglement purification with practical spontaneous parametric down conversion sources Y1 - 2017-06-05 JF - Chinese Physics B JO - Chin. Phys. B SP - 60307 EP - 060307 VL - 26 IS - 6 UR - https://cpb.iphy.ac.cn N1 - 10.1088/1674-1056/26/6/060307 ER -