Coherent control of time-periodically forced matter waves

时间周期强迫物质波的相干控制

• 批准号: 144180541
• 负责人: Professor Dr. Martin Holthaus
• 金额: --
• 依托单位: Institut für Physik (IFP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/144180541?language=en
• 关键词: Coherent; control; time; periodically; forced

In an effort undertaken jointly by the experimental BEC group in Pisa, Italy, and our Oldenburg theory group, it has recently been shown that “shaking” an optical lattice with frequencies in the low kHz-regime opens up new possibilities for controlling the state of a mesoscopic matter wave of ultracold atoms; among others, the phenomenon of dynamic localization and coherent control of the superfluid-to-Mott insulator transition have been demonstrated. The aim of the present project is to theoretically explore further options for efficient manipulation and control of matter waves in forced optical confinements, to identify the underlying physical mechanisms, and to optimize the respective control protocols. Besides an enhanced understanding of quantum many-body dynamics, the possible outcome includes a significant enlargement of the class of solid-state model systems which can be “simulated” with ultracold atoms. In addition, it appears feasible to realize new forms of quantum many-body dynamics which have not been considered before.The work will again be performed in close interaction with the BEC group in Pisa, so that essential parts of our results can be subjected to experimental tests already during the course of this project.

在意大利比萨的实验BEC小组和我们的Oldenburg理论小组共同进行的一项努力中，最近已经证明，“震动”频率在低千赫波段的光学晶格，为控制超冷原子的中观物质波的状态开辟了新的可能性；其中，超流体到莫特绝缘子跃迁的动态局域化和相干控制现象得到了证明。本项目的目的是从理论上探索在强制光受限中有效操纵和控制物质波的进一步选择，确定潜在的物理机制，并优化各自的控制协议。除了增强对量子多体动力学的理解之外，可能的结果包括可以用超冷原子“模拟”的固态模型系统的类别的显着扩大。此外，实现以前没有考虑过的量子多体动力学的新形式似乎是可行的。这项工作将再次与比萨的BEC小组密切互动，因此我们的结果的重要部分可以在这个项目的过程中进行实验测试。

项目成果

Emergence and destruction of macroscopic wave functions

宏观波函数的出现和破坏

• DOI: 10.1209/0295-5075/111/30006
• 发表时间: 2015
• 期刊: Europhysics Letters
• 作者: Gertjerenken;Holthaus
• 通讯作者: Holthaus

Energy flow in periodic thermodynamics.

• DOI: 10.1103/physreve.89.012101
• 发表时间: 2014-01
• 期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
• 作者: M. Langemeyer;M. Holthaus

Fluctuations of the order parameter of a mesoscopic Floquet condensate

介观 Floquet 凝聚态有序参数的涨落

• DOI: 10.1103/physreva.90.053614
• 发表时间: 2014
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Gertjerenken;Holthaus
• 通讯作者: Holthaus

N-coherence vs. t-coherence: An alternative route to the Gross–Pitaevskii equation

N 相干性与 t 相干性：GrossâPitaevskii 方程的替代途径

• DOI: 10.1016/j.aop.2015.08.017
• 发表时间: 2015
• 期刊: Annals of Physics
• 影响因子: 3
• 作者: Gertjerenken;Holthaus
• 通讯作者: Holthaus

ac Stark shift and multiphoton-like resonances in low-frequency driven optical lattices

低频驱动光学晶格中的交流斯塔克位移和类多光子共振

• DOI: 10.1103/physreva.85.063601
• 发表时间: 2012
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Arlinghaus;Holthaus
• 通讯作者: Holthaus