Document Zbl 1382.81053

Qu, Zhiguo; Wu, Shengyao; Wang, Mingming; Sun, Le; Wang, Xiaojun

Effect of quantum noise on deterministic remote state preparation of an arbitrary two-particle state via various quantum entangled channels. (English) Zbl 1382.81053

Quantum Inf. Process. 16, No. 12, Paper No. 306, 25 p. (2017).

Summary: As one of important research branches of quantum communication, deterministic remote state preparation (DRSP) plays a significant role in quantum network. Quantum noises are prevalent in quantum communication, and it can seriously affect the safety and reliability of quantum communication system. In this paper, we study the effect of quantum noise on deterministic remote state preparation of an arbitrary two-particle state via different quantum channels including the \(\chi \) state, Brown state and GHZ state. Firstly, the output states and fidelities of three DRSP algorithms via different quantum entangled channels in four noisy environments, including amplitude-damping, phase-damping, bit-flip and depolarizing noise, are presented, respectively. And then, the effects of noises on three kinds of preparation algorithms in the same noisy environment are discussed. In final, the theoretical analysis proves that the effect of noise in the process of quantum state preparation is only related to the noise type and the size of noise factor and independent of the different entangled quantum channels. Furthermore, another important conclusion is given that the effect of noise is also independent of how to distribute intermediate particles for implementing DRSP through quantum measurement during the concrete preparation process. These conclusions will be very helpful for improving the efficiency and safety of quantum communication in a noisy environment.

Cited in 11 Documents

MSC:

81P45	Quantum information, communication, networks (quantum-theoretic aspects)
81P40	Quantum coherence, entanglement, quantum correlations
81P15	Quantum measurement theory, state operations, state preparations
94A40	Channel models (including quantum) in information and communication theory
81S22	Open systems, reduced dynamics, master equations, decoherence

Keywords:

deterministic remote state preparation; quantum noise; quantum entangled channel; \(\chi \) state; Brown state; GHZ state; fidelity

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