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Title: Testing tripartite Mermin inequalities by spectral joint measurements of qubits

Abstract

Using spectral joint measurements of the qubits, we propose a scheme to test the tripartite Mermin inequality with three qubits dispersively coupled to a driven cavity. First, we show how to generate a three-qubit Greenberger-Horne-Zeilinger (GHZ) state by only one-step quantum operation. Then spectral joint measurements are introduced to directly confirm such tripartite entanglement. Assisted by a series of single-qubit operations, these measurements are further utilized to test the Mermin inequality. The feasibility of the proposal is robustly demonstrated by the present numerical experiments.

Authors:
 [1];  [2];  [3];  [1];  [4]
  1. Quantum Optoelectronics Laboratory, School of Physics and Technology, Southwest Jiaotong University, Chengdu 610031 (China)
  2. (Singapore)
  3. Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, Singapore 117542 (Singapore)
  4. (China)
Publication Date:
OSTI Identifier:
21550033
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevA.83.062108; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITIES; QUBITS; SPECTROSCOPY; TESTING; INFORMATION; QUANTUM INFORMATION

Citation Formats

Huang, J. S., Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, Singapore 117542, Oh, C. H., Wei, L. F., and State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University Guangzhou 510275. Testing tripartite Mermin inequalities by spectral joint measurements of qubits. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.062108.
Huang, J. S., Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, Singapore 117542, Oh, C. H., Wei, L. F., & State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University Guangzhou 510275. Testing tripartite Mermin inequalities by spectral joint measurements of qubits. United States. doi:10.1103/PHYSREVA.83.062108.
Huang, J. S., Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, Singapore 117542, Oh, C. H., Wei, L. F., and State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University Guangzhou 510275. Wed . "Testing tripartite Mermin inequalities by spectral joint measurements of qubits". United States. doi:10.1103/PHYSREVA.83.062108.
@article{osti_21550033,
title = {Testing tripartite Mermin inequalities by spectral joint measurements of qubits},
author = {Huang, J. S. and Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, Singapore 117542 and Oh, C. H. and Wei, L. F. and State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University Guangzhou 510275},
abstractNote = {Using spectral joint measurements of the qubits, we propose a scheme to test the tripartite Mermin inequality with three qubits dispersively coupled to a driven cavity. First, we show how to generate a three-qubit Greenberger-Horne-Zeilinger (GHZ) state by only one-step quantum operation. Then spectral joint measurements are introduced to directly confirm such tripartite entanglement. Assisted by a series of single-qubit operations, these measurements are further utilized to test the Mermin inequality. The feasibility of the proposal is robustly demonstrated by the present numerical experiments.},
doi = {10.1103/PHYSREVA.83.062108},
journal = {Physical Review. A},
issn = {1050-2947},
number = 6,
volume = 83,
place = {United States},
year = {2011},
month = {6}
}