arXiv quant-ph/99100731999-10quant-ph

玻色-爱因斯坦凝聚体之间的纠缠

Entanglement Between Bose-Einstein Condensates

Yu Shi

备注：: 18 pages. Eq. (73) is changed
发表信息：: Int. J. Mod. Phys. B, Vol. 15 (2001) 3007-3030
DOI：: 10.1142/S0217979201007154

摘要：

对于双势阱中的玻色凝聚或具有两个约瑟夫森耦合内态的玻色凝聚，凝聚波函数是叠加的。在这里，我们考虑耦合两个这样的玻色凝聚，并建议存在一个联合凝聚波函数，这是在一般情况下的所有产品的两个凝聚的基础凝聚波函数的叠加。相应的多体态是这样的叠加波函数的产物，具有适当的对称性。这些状态可能对量子计算有潜在的用处。由于宏观上占据同一个单粒子态，可能存在鲁棒性和稳定性。由于粒子间相互作用而产生的凝聚波函数的非线性可以用来实现非线性量子计算，这种非线性量子计算被认为能够解决NP完全问题。

英文摘要：

For a Bose condensate in a double-well potential or with two Josephson-coupled internal states, the condensate wavefunction is a superposition. Here we consider coupling two such Bose condensates, and suggest the existence of a joint condensate wavefunction, which is in general a superposition of all products of the bases condensate wavefunctions of the two condensates. The corresponding many-body state is a product of such superposed wavefunctions, with appropriate symmetrization. These states may be potentially useful for quantum computation. There may be robustness and stability due to macroscopic occupation of a same single particle state. The nonlinearity of the condensate wavefunction due to particle-particle interaction may be utilized to realize nonlinear quantum computation, which was suggested to be capable of solving NP-complete problems.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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英文摘要：

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