Preparation of Arbitrary Four-Qubit W State with Atomic Ensembles via Rydberg Blockade

The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for generating Greenberger-Horne-Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as...

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Published inChinese physics letters Vol. 27; no. 4; pp. 33 - 36
Main Author 韩阳 吴春旺 高明 梁林梅 陈平形 李承祖
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2010
Subjects
Blocking
Clusters
Entangled states
Noise
Nuclear power generation
Tasks
量子信息处理
量子比特
非最大纠缠态
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/27/4/040307

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Abstract The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for generating Greenberger-Horne-Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as the earlier scheme, here we propose an experimentally feasible scheme of preparing arbitrary four-qubit W class of maximally and non- maximally entangled states with atomic ensembles in a single step. Moreover, we carefully analyze the realistic noises and predict that four-qubit W states can be produced with high fidelity （F - 0.994） via our scheme.
AbstractList The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme (PRA 7,022304) has been suggested for generating Greenberger--Horne--Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as the earlier scheme, here we propose an experimentally feasible scheme of preparing arbitrary four-qubit W class of maximally and non-maximally entangled states with atomic ensembles in a single step. Moreover, we carefully analyze the realistic noises and predict that four-qubit W states can be produced with high fidelity (F ~ 0.994) via our scheme.
The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for generating Greenberger-Horne-Zeilinger state and cluster state with atomic ensembles based on the Rydberg blockade. Using similar resources as the earlier scheme, here we propose an experimentally feasible scheme of preparing arbitrary four-qubit W class of maximally and non- maximally entangled states with atomic ensembles in a single step. Moreover, we carefully analyze the realistic noises and predict that four-qubit W states can be produced with high fidelity （F - 0.994） via our scheme.
Author 韩阳 吴春旺 高明 梁林梅 陈平形 李承祖
AuthorAffiliation College of Science, National University of Defense Technology, Changsha 410073
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Snippet The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme （PRA 79, 022304） has been suggested for...
The generation of various entangled states is an essential task in quantum information processing. Recently, a scheme (PRA 7,022304) has been suggested for...
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SubjectTerms Blocking
Clusters
Entangled states
Noise
Nuclear power generation
Tasks
量子信息处理
量子比特
非最大纠缠态
Title Preparation of Arbitrary Four-Qubit W State with Atomic Ensembles via Rydberg Blockade
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