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arXiv 1802.07097quant-phphysics.optics
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利用绝热性捷径和最优控制使玻色子约瑟夫森结中的纠缠最大化

Maximizing entanglement in bosonic Josephson junctions using shortcuts to adiabaticity and optimal control

Dionisis Stefanatos, Emmanuel Paspalakis

摘要:

在这篇文章中,我们考虑了玻色约瑟夫森结,一个模型系统组成的两个耦合的非线性量子振荡器,可以在各种物理环境中实现,最初准备在一个产品的弱布居相干态。我们量化了结的模式之间可实现的最大纠缠,然后使用绝热性的捷径,一种用于加速绝热量子动力学的方法,以及数值优化,以找到时间相关的控制(结的非线性和耦合),使系统达到最大纠缠态。

英文摘要:

In this article we consider a bosonic Josephson junction, a model system composed by two coupled nonlinear quantum oscillators which can be implemented in various physical contexts, initially prepared in a product of weakly populated coherent states. We quantify the maximum achievable entanglement between the modes of the junction and then use shortcuts to adiabaticity, a method developed to speed up adiabatic quantum dynamics, as well as numerical optimization, to find time-dependent controls (the nonlinearity and the coupling of the junction) which bring the system to a maximally entangled state.

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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