Parallel remote preparation of quantum states with polarization-frequency-time-bin hyperentangled state

IF 2.2 3区物理与天体物理 Q1 PHYSICS, MATHEMATICAL

Quantum Information Processing Pub Date : 2024-11-28 DOI:10.1007/s11128-024-04583-8

Qi Lan, Cheng-Ming Huang, Ping Zhou

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引用次数: 0

Abstract

Preparing quantum state remotely is one of the central tasks in long-distance quantum communication. Here we present a protocol to parallel remote preparation of the arbitrary single-qubit states in three DoFs by rotating quantum states in each DoF of the photon via linear-optical elements. The arbitrary single-qubit states can be remote prepared in frequency, time-bin and polarization DoFs by manipulating the quantum states in each DoF. Moreover, we discuss the protocol for parallel remote preparation in frequency, time-bin and polarization DoFs by using partially hyperentangled state as the quantum channel. Our protocols have the advantages of having higher channel capacity than previous RSP protocols since each photon can carry 3 qubits of quantum information via a fiber channel, not just 1 or 2 qubits. Since partially hyperentangled channel can be transformed to the target channel for parallel remote state preparation recursively via optical elements, the efficiency for hyperentangled channel is greatly enhanced.

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并行远程制备具有偏振-频率-时间双超纠缠态的量子态

远程制备量子态是远距离量子通信的核心任务之一。在这里，我们提出了一种协议，通过线性光学元件旋转光子在每个 DoF 中的量子态，在三个 DoF 中并行远程制备任意单量子比特态。通过操纵每个 DoF 中的量子态，可以在频率、时间带和偏振 DoF 中远程制备任意单量子比特态。此外，我们还讨论了利用部分超纠缠态作为量子信道，在频率、时间带和偏振多场中进行并行远程制备的协议。与之前的 RSP 协议相比，我们的协议具有更高的信道容量优势，因为每个光子可以通过光纤信道携带 3 量子比特的量子信息，而不仅仅是 1 或 2 量子比特。由于部分超纠缠信道可以通过光学元件递归地转换为并行远程状态制备的目标信道，因此超纠缠信道的效率大大提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Quantum Information Processing 物理-物理：数学物理

CiteScore

4.10

自引率

20.00%

发文量

337

审稿时长

4.5 months

期刊介绍： Quantum Information Processing is a high-impact, international journal publishing cutting-edge experimental and theoretical research in all areas of Quantum Information Science. Topics of interest include quantum cryptography and communications, entanglement and discord, quantum algorithms, quantum error correction and fault tolerance, quantum computer science, quantum imaging and sensing, and experimental platforms for quantum information. Quantum Information Processing supports and inspires research by providing a comprehensive peer review process, and broadcasting high quality results in a range of formats. These include original papers, letters, broadly focused perspectives, comprehensive review articles, book reviews, and special topical issues. The journal is particularly interested in papers detailing and demonstrating quantum information protocols for cryptography, communications, computation, and sensing.