Deterministic remote preparation of arbitrary single-qubit state via one intermediate node in noisy environment

Publication date: Available online 17 December 2019Source: Physics Letters AAuthor(s): Ying-jia Qian, Shi-bei Xue, Min JiangAbstractWe propose a remote state preparation scheme working in noisy environment via one intermediate node. Firstly, we report the remote preparation of an arbitrary single-qubit state with one intermediate node in ideal environment. Afterwards, we investigate the influence of four kinds of representative noises that are commonly encountered in practical applications of quantum communication protocols. Detailed analysis indicates that the fidelities of the output state rely on the coefficients of the prepared state and the decoherence rate. The turning point is λ=0.5 in both the bit-flip and phase-flip noisy channels. The fidelity in the depolarizing channel is related with the decoherence rate, and independent with the phase parameters.
Source: Physics Letters A - Category: Physics Source Type: research