Generation of three-photon entangled state by quantum interference between a coherent state and parametric down-conversion
Three-photon entangled states such as a Greenberger-Horne-Zeilinger state can be produced by mixing a weak coherent state with parametric down-conversion. Quantum interference between the two states is responsible for the cancellation of unwanted photon states. Two schemes of interference are consid...
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Published in: | Physical review. A, Atomic, molecular, and optical physics Vol. 70; no. 4 |
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Main Authors: | , , |
Format: | Journal Article |
Language: | English |
Published: |
United States
01-10-2004
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Subjects: | |
Online Access: | Get full text |
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Summary: | Three-photon entangled states such as a Greenberger-Horne-Zeilinger state can be produced by mixing a weak coherent state with parametric down-conversion. Quantum interference between the two states is responsible for the cancellation of unwanted photon states. Two schemes of interference are considered and both are shown to produce the entangled state. |
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ISSN: | 1050-2947 1094-1622 |
DOI: | 10.1103/PhysRevA.70.043803 |