Remote preparation and manipulation of squeezed light

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.