Nondestructive photonic polarization Greenberger–Horne–Zeilinger states analyzer assisted by quantum-dot cavity systems

Nondestructive photonic polarization Greenberger–Horne–Zeilinger states analyzer assisted by... Nondestructive entangled-state analyzers could save the physical entanglement resource and boost the efficiency of quantum information processing (QIP). However, up to now, there is no much progress in the nondestructive analysis of Greenberger–Horne–Zeilinger (GHZ) states. In this paper, a nondestructive photonic polarization GHZ-state analyzer, based on the interaction between circularly polarized light and quantum-dot cavity systems, is proposed. We can distinguish the GHZ states deterministically in theory, and the states are not destroyed because no single-photon detectors are required. Our scheme can be extended to $$n$$ n -photon GHZ states analysis directly and can be used to achieve QIP with less resource. Quantum Information Processing Springer Journals

Nondestructive photonic polarization Greenberger–Horne–Zeilinger states analyzer assisted by quantum-dot cavity systems

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Springer US
Copyright © 2014 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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    Shi, RH; Huang, LS; Yang, W
  • Complete Greenberger–Horne–Zeilinger state analyzer using hyperentanglement
    Song, SY; Cao, Y; Sheng, YB
  • Coherent optical spectroscopy of a strongly driven quantum dot
    Xu, X; Sun, B; Berman, PR
  • Universal quantum gates for hybrid systems assisted by quantum dots inside double-sided optical microcavities
    Wei, HR; Deng, FG
  • Efficient entanglement concentration for quantum dot and optical microcavities systems
    Sheng, YB; Zhou, L; Wang, L

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