Han Dongmei, Wang Na, Wang Meihong, Qin Zhongzhong, Su Xiaolong
Opt Lett. 2022 Jul 1;47(13):3295-3298. doi: 10.1364/OL.463697.
Remote state preparation enables one to create and manipulate a quantum state based on the shared entanglement between distant nodes. Here, we experimentally demonstrate remote preparation and manipulation of squeezed light. By performing a homodyne projective measurement on one mode of the continuous variable entangled state at Alice's station, a squeezed state is created at Bob's station. Moreover, rotation and displacement operations are applied on the prepared squeezed state by changing the projective parameters on Alice's state. We also show that the remotely prepared squeezed state is robust against loss and N - 1 squeezed states can be remotely prepared based on an N-mode continuous variable Greenberger-Horne-Zeilinger-like state. Our results verify the entanglement-based model used in security analysis of quantum key distribution with continuous variables and have potential application in remote quantum information processing.
远程态制备使人们能够基于遥远节点之间共享的纠缠来创建和操纵量子态。在此,我们通过实验演示了压缩光的远程制备和操纵。通过在爱丽丝站对连续变量纠缠态的一个模式进行零差投影测量,在鲍勃站创建了一个压缩态。此外,通过改变爱丽丝态上的投影参数,对制备好的压缩态应用旋转和位移操作。我们还表明,远程制备的压缩态对损耗具有鲁棒性,并且基于N模连续变量类格林伯格 - 霍恩 - 蔡林格态可以远程制备N - 1个压缩态。我们的结果验证了用于连续变量量子密钥分发安全分析的基于纠缠的模型,并在远程量子信息处理中具有潜在应用。