Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Acta Sinica Quantum Optica

Purification for Entangled Multi-particle States via Entanglement Swapping

Gong Ren-shan

Published Jan 1, 2006• 0 citations
OpenAlex

Abstract

The author investigate the purification of entangled two-particle states and entangled three-particle states by entanglement swapping,then populanze it to entangled multi-particle states,and the author find that the totol probability is 2|b|~2 in all kinds of states.In the process,only the unitary transformation and Hadamard transformation are nsed.

Related papers

Purification for entangled multi-atom states via entanglement swapping

Gong Ren-shan

Purification of non-maximally entangled two-atom states and three-atom states is investigated by means of entanglement swapping,which is generalized to non-maximally entangled multi-atom states' purification.It is found that the purification probabilities in all kinds of entangled atom states are the same, 2|b|~2,which is equal to twice modulus of the least coefficient of four coefficients in entangled atom states.

Chinese Journal of Quantum Electronics•Jan 1, 2008•0 citations

The entanglement purification for entangled multi-particle states

Ye Liu, Chunmei Yao, Guang‐Can Guo

We present two purification schemes for nonmaximally entangled states. We first show that two parties, Alice and Bob, start with shared less-entangled three-particle states to probabilistically produce a three-particle Greenberger–Horne–Zeilinger state by Bell state measurements and positve operator valued measure (POVM) or a unitary transformation. Then, by a straightforward generalization of the schemes, the purification of a multi-particle entangled state can be realized.

Journal of Optics B Quantum and Semiclassical Optics•Apr 18, 2002•3 citations

Optimal entanglement purification via entanglement swapping

Bao‐Sen Shi, Yun-Kun Jiang, Guang‐Can Guo

It is known that entanglement swapping can be used to realize entanglement purification. In this way, two particles belonging to different nonmaximally entangled pairs can be projected probabilistically to a maximally entangled state or to a less entangled state. In this paper, we show, when the less entangled state is obtained, then a maximally entangled state can be obtained probabilistically from this less entangled state if a unitary transformation is introduced locally. The probability of success of our scheme is equal to the entanglement of a single pair purification (if two original pairs are in the same nonmaximally entangled states) or to the smaller entanglement of a single pair purification of these two pairs (if two original pairs are not in the same nonmaximally entangled states). The advantage of our scheme is that no continuous indefinite iterative procedure is needed to achieve optimal purification.

arXiv:quant-ph/0005125•Physical Review A•Oct 10, 2000•175 citations

Teleportation of a Three-Particle State via Entanglement Swapping

Fang Jian-Xing, Ling Yin-Sheng, Zhu Shi-Qun +1 more

A scheme for teleporting a three-particle state is proposed when three pairs of entangled particles are used as quantum channel. After a sender operates the Bell-state measurement, the original state with deterministic probability can be reconstructed when the receiver performs a corresponding measurement with unitary transformation.

Communications in Theoretical Physics•May 15, 2003•9 citations

Teleportation of a Three—Particle state via Entanglement Swapping

FANGJian-Xing, LINGYin-Sheng, ZHUShi-Qun +1 more

A scheme for teleporting a three-particle state is proposed when three pairs of entang]ed particles are used as quantum channel. After a sender operates the Bell-state measurement, the original state with deterministic probability can be reconstructed when the receiver performs a corresponding measurement with unitary transformation.

理论物理通讯：英文版•Jan 1, 2003•0 citations

Teleportation of an arbitrary two-particle state via entanglement swapping

Jianxing Fang, Xianfeng Chen, Rong Zhang +1 more

A scheme of teleportation of an arbitrary two-particle state is presented when two pairs of entangled particles are used as quantum channels. After the Bell state measurements are operated by the sender, the original state with deterministic probability can be reconstructed by the receiver when a corresponding unitary transformation is followed.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Sep 11, 2002•2 citations
The author investigate the purification of entangled two-particle states and entangled three-particle states by entanglement swapping,then populanze it to entangled multi-particle states,and the author find that the totol probability is 2|b|~2 in all kinds of states.In the process,only the unitary transformation and Hadamard transformation are nsed.
It is known that entanglement swapping can be used to realize entanglement purification. In this way, two particles belonging to different nonmaximally entangled pairs can be projected probabilistically to a maximally entangled state or to a less entangled state. In this paper, we show, when the less entangled state is obtained, then a maximally entangled state can be obtained probabilistically from this less entangled state if a unitary transformation is introduced locally. The probability of success of our scheme is equal to the entanglement of a single pair purification (if two original pairs are in the same nonmaximally entangled states) or to the smaller entanglement of a single pair purification of these two pairs (if two original pairs are not in the same nonmaximally entangled states). The advantage of our scheme is that no continuous indefinite iterative procedure is needed to achieve optimal purification.