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Deep strong coupling of quantum mechanical motional modes with ultracold atoms in an optical lattice potential

量子力学运动模式与光晶格势中超冷原子的深度强耦合

基本信息

批准号：
383433119
负责人：
Professor Dr. Martin Weitz
金额：
--
依托单位：
Institut für Angewandte Physik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2017
资助国家：
德国
起止时间：
2016-12-31 至 2022-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/383433119?language=en
关键词：
Deep strong coupling quantum mechanical

项目摘要

Ultracold atoms in optical lattice potentials represent an excellent system both for the physical implementation and for the quantum simulation of effects from different physical domains. Examples include the demonstration of phenomena known from solid-state physics, as the Mott-Isolator transition, or predictions of relativistic wave equations. In preparatory work, our group succeeded in demonstrating relativistic Klein tunneling with ultracold atoms in an optical lattice of variable dispersion, atomic quantum ratchets, and recently the spatial resolving of a topologically protected edge state with atoms in an optical lattice. Central to these experiments was the development of variable optical multi-photon lattices in our research group.Based on these preliminary works, we plan to exploit the regime of extremely strong coupling of quantum mechanical modes, in which the coupling strength between the modes exceeds their eigenfrequencies, using ultracold atoms in optical lattice potentials. On the theoretical side our experimental work is supported by the theory group of Prof. E. Solano, University of the Basque Country in Bilbao, with which the theoretical concept for the planned experimental procedure was jointly developed. With the ultracold atom system, we plan to experimentally demonstrate novel physics effects of the deep strong coupling regime.

光学晶格势中的超冷原子代表了一个出色的系统，无论是对于物理实现还是对于不同物理域效应的量子模拟。例子包括演示固态物理学中已知的现象，如莫特隔离器跃迁，或相对论波动方程的预测。在准备工作中，我们的小组成功地演示了可变色散光学晶格中的超冷原子的相对论克莱因隧道效应、原子量子棘轮，以及最近在光学晶格中原子的拓扑保护边缘态的空间解析。这些实验的核心是我们研究小组开发的可变光学多光子晶格。基于这些前期工作，我们计划利用光学晶格势中的超冷原子，开发量子力学模式的极强耦合机制，其中模式之间的耦合强度超过其本征频率。在理论方面，我们的实验工作得到了毕尔巴鄂巴斯克大学 E. Solano 教授理论小组的支持，与该小组共同开发了计划实验程序的理论概念。通过超冷原子系统，我们计划通过实验证明深度强耦合机制的新颖物理效应。