Abstract
The Universal Blind Quantum Computation (UBQC) protocol allows a client to perform quantum computation on a remote server. In the UBQC with Weak Coherent Pulses (WCP), the Remote Blind qubit State Preparation (RBSP) protocol requires larger scale number of pulses for preparing one single qubit, especially the long-distance communication. In the paper, we present a modified RBSP protocol with two decoy states to reduce the required number of pulses for the client. Both theoretical analysis and simulation results demonstrate that decoy state can improve the qubit preparation efficiency of UBQC protocol greatly and two decoy states perform even better than one decoy state. What is more, the advantage of two decoy states become more highlighted with the increasing of distance.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call