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arXiv 0803.0183quant-phcond-mat.other
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光晶格中量子门原子输运的最优控制

Optimal control of atom transport for quantum gates in optical lattices

G. De Chiara, T. Calarco, M. Anderlini, S. Montangero, P. J. Lee, B. L. Brown, W. D. Phillips, J. V. Porto

摘要:

通过最优控制技术,我们模拟和优化操纵的外部量子态(质心运动)的原子被困在可调光学势。详细讨论了双势阱中原子在相邻两个原子之间运动的情况。这样的晶格可以实现原子对的相互作用介导的纠缠,并且可以实现两量子比特的量子门。光学势的优化控制序列允许比基于绝热传输的过程更快地传输并且具有显著更大的保真度。

英文摘要:

By means of optimal control techniques we model and optimize the manipulation of the external quantum state (center-of-mass motion) of atoms trapped in adjustable optical potentials. We consider in detail the cases of both non interacting and interacting atoms moving between neighboring sites in a lattice of a double-well optical potentials. Such a lattice can perform interaction-mediated entanglement of atom pairs and can realize two-qubit quantum gates. The optimized control sequences for the optical potential allow transport faster and with significantly larger fidelity than is possible with processes based on adiabatic transport.

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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