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Creation of Multipartite Entanglement and Entanglement Transfer via Heisenberg Interaction |
| ZHANG Yong1;CAO Wan-Cang1,3;LONG Gui-Lu1,2 |
| 1Key Laboratory For Quantum Information and Measurements, Department of Physics, Tsinghua University, Beijing 100084
2Key Laboratory for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084
3Department of Physics, Chifeng Collage, Chifeng 024000 |
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| Cite this article: |
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ZHANG Yong, CAO Wan-Cang, LONG Gui-Lu 2005 Chin. Phys. Lett. 22 2143-2146 |
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Abstract We discuss how to create multipartite entanglement. By coupling a new particle with entangled particles via Heisenberg interaction between two particles, we can prepare three-particle entangled states. For some special coupling strength, entanglement transfer can be achieved from entangled pair AB to particles A and C that never interact by coupling particle C with particle B, which can be used to create entanglement between two separated particles.
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| Keywords:
03.65.Ud
03.67.Mn
03.67.Hk
03.65.Ca
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Published: 01 September 2005
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| PACS: |
03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.67.Hk
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(Quantum communication)
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03.65.Ca
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(Formalism)
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