Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement

doi:10.1088/1674-1056/abeef2

中国物理B ›› 2021, Vol. 30 ›› Issue (9): 90302-090302.doi: 10.1088/1674-1056/abeef2

Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement

Yan Yu(于妍)¹, Nan Zhao(赵楠)^1,†, Chang-Xing Pei(裴昌幸)¹, and Wei Li(李玮)²

1 State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China;
2 Cloud Computing Center of Xi'an Branch of Shaanxi Telecom, China Telecom, Xi'an 710002, China

收稿日期:2020-10-22 修回日期:2021-02-22 接受日期:2021-03-16 出版日期:2021-08-19 发布日期:2021-08-19
通讯作者: Nan Zhao E-mail:zhaonan@xidian.edu.cn
基金资助:
Project supported by the Key Industry Projects in Shaanxi Province, China (Grant Nos. 2019ZDLGY09-03 and 2020ZDLGY15-09), the National Natural Science Foundation of China (Grant Nos. 61771296, 61372076, and 61301171), the Natural Science Foundation of Shaanxi Province, China (Grant Nos. 2018JM60-53 and 2018JZ60-06), and the 111 Project (Grant B08038).

Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement

Yan Yu(于妍)¹, Nan Zhao(赵楠)^1,†, Chang-Xing Pei(裴昌幸)¹, and Wei Li(李玮)²

1 State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China;
2 Cloud Computing Center of Xi'an Branch of Shaanxi Telecom, China Telecom, Xi'an 710002, China

Received:2020-10-22 Revised:2021-02-22 Accepted:2021-03-16 Online:2021-08-19 Published:2021-08-19
Contact: Nan Zhao E-mail:zhaonan@xidian.edu.cn
Supported by:
Project supported by the Key Industry Projects in Shaanxi Province, China (Grant Nos. 2019ZDLGY09-03 and 2020ZDLGY15-09), the National Natural Science Foundation of China (Grant Nos. 61771296, 61372076, and 61301171), the Natural Science Foundation of Shaanxi Province, China (Grant Nos. 2018JM60-53 and 2018JZ60-06), and the 111 Project (Grant B08038).

摘要/Abstract

摘要： Due to the unavoidable interaction between the quantum channel and its ambient environment, it is difficult to generate and maintain the maximally entanglement. Thus, the research on multiparty information transmission via non-maximally entangled channels is of academic value and general application. Here, we utilize the non-maximally entangled channels to implement two multiparty remote state preparation schemes for transmitting different quantum information from one sender to two receivers synchronously. The first scheme is adopted to transmit two different four-qubit cluster-type entangled states to two receivers with a certain probability. In order to improve success probabilities of such multicast remote state preparation using non-maximally entangled channels, we put forward the second scheme, which deals with the situation that is a synchronous transfer of an arbitrary single-qubit state and an arbitrary two-qubit state from one sender to two receivers. In particular, its success probability can reach 100% in principle, and independent of the entanglement degree of the shared non-maximally entangled channel. Notably, in the second scheme, the auxiliary particle is not required.

关键词: quantum multicast communications, non-maximally entangled states, remote state preparation

Abstract: Due to the unavoidable interaction between the quantum channel and its ambient environment, it is difficult to generate and maintain the maximally entanglement. Thus, the research on multiparty information transmission via non-maximally entangled channels is of academic value and general application. Here, we utilize the non-maximally entangled channels to implement two multiparty remote state preparation schemes for transmitting different quantum information from one sender to two receivers synchronously. The first scheme is adopted to transmit two different four-qubit cluster-type entangled states to two receivers with a certain probability. In order to improve success probabilities of such multicast remote state preparation using non-maximally entangled channels, we put forward the second scheme, which deals with the situation that is a synchronous transfer of an arbitrary single-qubit state and an arbitrary two-qubit state from one sender to two receivers. In particular, its success probability can reach 100% in principle, and independent of the entanglement degree of the shared non-maximally entangled channel. Notably, in the second scheme, the auxiliary particle is not required.

Key words: quantum multicast communications, non-maximally entangled states, remote state preparation

中图分类号: (Quantum information)

03.67.-a

03.67.Hk (Quantum communication)

Yan Yu(于妍), Nan Zhao(赵楠), Chang-Xing Pei(裴昌幸), and Wei Li(李玮). Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement[J]. 中国物理B, 2021, 30(9): 90302-090302.

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Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement

Quantum multicast schemes of different quantum states via non-maximally entangled channels with multiparty involvement

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