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Optical Bell state and Greenberger–Horne–Zeilinger-state analyzers through the cavity input–output process

✍ Scribed by Xiu-Min Lin; Zhi-Hua Chen; Gong-Wei Lin; Xiao-Dong Chen; Bin-Bin Ni

Book ID
103874274
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
305 KB
Volume
282
Category
Article
ISSN
0030-4018

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✦ Synopsis

With the ancillary one-sided cavities each trapping an alkali atom, the schemes for the analyzers of twophoton Bell states and three-photon Greenberger-Horne-Zeilinger (GHZ) states are proposed, respectively. Moreover, all of two-photon Bell states and three-photon GHZ states can be nondestructively distinguished. The influence of atomic spontaneous emission and output coupling inefficiency are discussed.

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Preparation of Greenberger–Horne–Zeilinger and W states of three atoms trapped in one cavity through cavity output process
✍ Yan Xia; Jie Song; Pei-Min Lu; He-Shan Song 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 284 KB

We propose a protocol to generate Greenberger-Horne-Zeilinger (GHZ) and W states of three atoms trapped in only one cavity. The setup involves one cavity and linear optical elements. The quantum information of each qubit is skillfully encoded on the degenerate ground states of the three different at