2019/12/31 by Subhashish Barik, Barik, Subhashish, Aakash Warke +5
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2001.00574
openalex publication_date 2019/12/31 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
Quantum communication is one of the cutting-edge research areas today, where\nthe scheme of Remote State Preparation (RSP) has caught significant attention\nof researchers. A number of different schemes of RSP have already been proposed\nso far. We propose here a hierarchical RSP protocol for sending a two-qubit\nentangled state using a seven-qubit highly entangled state derived from Brown\net al. state. We have also studied here the effects of two well known noise\nmodels namely amplitude damping (AD) and phase damping (PD) that affect the\nquantum communication channel used for the protocol. An investigation on the\nvariation of fidelity of the state with respect to the noise operator and the\nreceiver is made. PD noise is found to affect the fidelity more than the AD\nnoise and the higher power receiver, obtains the state with higher fidelity\nthan the lower power receiver under the effect of noise. To the best of our\nknowledge, we believe that we have achieved the highest fidelity for the higher\npower receiver, 0.89 in the presence of maximum AD noise and 0.72 in the\npresence of maximum PD noise, compared to all the previously proposed RSP\nprotocols in noisy environments. The study of noise is described in a very\npedagogical manner for better understanding of the application of noise models\nto a communication protocol.\n