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

Quantum Studies Mathematics and Foundations

An entanglement concentration protocol for extended GHZ states

Binayak Samadder Choudhury, Arpan Dhara

Published Feb 9, 2017• 0 citations
Publisher
DOI
10.1007/s40509-017-0099-9

Related papers

Efficient Entanglement Concentration for Arbitrary Less-Entangled N-Atom GHZ State

Lan Zhou, Xing-Fu Wang, Yu‐Bo Sheng

International Journal of Theoretical Physics•Jan 7, 2014•7 citations

Entanglement Concentration Protocols for GHZ-type Entangled Coherent State Based on Linear Optics

Mitali Sisodia, Chitra Shukla

arXiv:2007.07014•International Journal of Theoretical Physics•Mar 31, 2021•0 citations

Entanglement concentration for concatenated Greenberger-Horne-Zeiglinger state with feasible linear optics

Yu‐Bo Sheng, Chang-Cheng Qu, Zhou, Lan

The concatenated Greenberger-Horne-Zeiglinger (C-GHZ) state which is a new type of logic-qubit entanglement has attracted a lot of attentions recently. We present a feasible entanglement concentration protocol (ECP) for logic-qubit entanglement. This ECP is based on the linear optics, and it does not know the initial coefficients of the less-entangled C-GHZ state. This protocol can be extended to arbitrary C-GHZ state. This protocol may be useful in future quantum information processing tasks.

arXiv:1602.02331•Feb 7, 2016•0 citations

An entanglement concentration protocol for cluster states

Binayak Samadder Choudhury, Arpan Dhara

Quantum Information Processing•Feb 26, 2013•33 citations

Optimal multi-photon entanglement concentration with the photonic Faraday rotation

Lan Zhou, Dandan Wang, Xing-Fu Wang +2 more

We put forward an optimal entanglement concentration protocol (ECP) for recovering an arbitrary less-entangled multi-photon Greenberger–Horne–Zeilinger (GHZ) state into the maximally entangled GHZ state based on the photonic Faraday rotation in low-quality ( Q ) cavity. In the ECP, only one pair of less-entangled multi-photon GHZ state and one auxiliary photon are required, and the concentration task can be realized by local operations. Moreover, our ECP can be used repeatedly to further concentrate the discarded items of conventional ECPs, which can increase its success probability largely. Under the practical imperfect detection condition, our protocol can still work with relatively high success probability. This ECP has application potential in current and future quantum communication.

Chinese Physics B•Feb 1, 2017•3 citations

On Extension of Optimal Entanglement Concentration of GHZ States in Quantum-Dot and Micro-Cavity Coupled System

Dazu Huang, Yijun Wang, Ying Guo

We extend an optimal entanglement distillation of the triplet Greenberger—Horne—Zeilinger (GHZ) state via entanglement concentrating in the three-partite partially electron-spin-entangled systems. Two entanglement concentration protocols are similarly designed in detail with the post-selection in quantum-dot (QD) and micro-cavity coupled systems. The proposed protocol can be repeated several rounds to achieve an optimal success probability with an assistance of the ancillary QD, where only the single photon needs to pass through the micro-cavity for each round. It increases the total success probability of the distillation even if the implemented cavity is imperfect in practice during the whole process.

Communications in Theoretical Physics•Jun 1, 2014•1 citation
We put forward an optimal entanglement concentration protocol (ECP) for recovering an arbitrary less-entangled multi-photon Greenberger–Horne–Zeilinger (GHZ) state into the maximally entangled GHZ state based on the photonic Faraday rotation in low-quality ( Q ) cavity. In the ECP, only one pair of less-entangled multi-photon GHZ state and one auxiliary photon are required, and the concentration task can be realized by local operations. Moreover, our ECP can be used repeatedly to further concentrate the discarded items of conventional ECPs, which can increase its success probability largely. Under the practical imperfect detection condition, our protocol can still work with relatively high success probability. This ECP has application potential in current and future quantum communication.
We extend an optimal entanglement distillation of the triplet Greenberger—Horne—Zeilinger (GHZ) state via entanglement concentrating in the three-partite partially electron-spin-entangled systems. Two entanglement concentration protocols are similarly designed in detail with the post-selection in quantum-dot (QD) and micro-cavity coupled systems. The proposed protocol can be repeated several rounds to achieve an optimal success probability with an assistance of the ancillary QD, where only the single photon needs to pass through the micro-cavity for each round. It increases the total success probability of the distillation even if the implemented cavity is imperfect in practice during the whole process.