Error-rejecting entanglement purification and concentration for one-dimensional waveguide-emitter system

被引：0

作者：

Du, Fang-Fang ^{[1
]}

Li, Ling-Hui ^{[1
]}

Ren, Xue-Mei ^{[1
]}

Wang, Yang-Yang ^{[2
,3
]}

Liu, Wen-Yao ^{[1
]}

机构：

[1] North Univ China, Sci & Technol Elect Test & Measurement Lab, Taiyuan 030051, Peoples R China

[2] Xijing Univ, Shaanxi Engn Res Ctr Controllable Neutron Source, Sch Elect Informat, Xian 710123, Peoples R China

[3] Xijing Univ, Shaanxi Int Joint Res Ctr Appl Technol Controllabl, Sch Elect Informat, Xian 710123, Peoples R China

来源：

LASER PHYSICS | 2024年 / 34卷 / 11期

基金：

中国国家自然科学基金;

关键词：

quantum communication; the parity check gate; entanglement purification; entanglement concentration; QUANTUM; GATES;

D O I：

10.1088/1555-6611/ad7c33

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The distribution of maximal entanglement stands as a pivotal technique in long-distance practical quantum communication. Specifically, achieving high-fidelity entanglement distribution leans upon efficacious entanglement purification and entanglement concentration. In this paper, we materialize error-rejecting nonlocal entanglement purification protocol (EPP) and entanglement concentration protocol (ECP) for solid-state emitter systems assisted by the scattering property of photon-emitter in one-dimensional waveguide. The parity-check gates of both the EPP and ECP can herald the faulty events with the help of the detectors that click, so they are accomplished, in principle, with unity fidelities, which are conducive to implement two protocols. Moreover, additional emitters are unnecessary except a single photon.

引用

页数：10

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