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Explicit Analysis of Creating Maximally Entangled State in the Mott Insulator State |
| LI Min-Si1,2;TIAN Li-Jun3;ZHANG Hong-Biao4 |
| 1Theoretical Physics Division, Nankai Institute of Mathematics, Nankai University, Tianjin 300071
2Liuhui Centre for Applied Mathematics, Nankai University and Tianjin University, Tianjin 300071
3Department of Physics, College of Science, Shanghai University, Shanghai 200436
4Institute of Theoretical Physics, Northeast Normal University, Changchun 130024 |
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| Cite this article: |
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LI Min-Si, TIAN Li-Jun, ZHANG Hong-Biao 2004 Chin. Phys. Lett. 21 2347-2350 |
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Abstract We clarify the essence of the method proposed by You (Phys. Rev. Lett. 90(2004)030402) to create the maximally entangled atomic N-GHZ state in the Mott insulator state. Based on the time-independent perturbation theory, we find that the validity of the method can be summarized as that the Hamiltonian governing the evolution is approximately equivalent to the type aJ2x+bJx, which is the well known form used to create the maximally entangled state.
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| Keywords:
03.67.Mn
03.75.Gg
03.75.Mn
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Published: 01 December 2004
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| PACS: |
03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.75.Gg
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(Entanglement and decoherence in Bose-Einstein condensates)
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03.75.Mn
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(Multicomponent condensates; spinor condensates)
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