Quantum dynamics in dissipative ultracold atomic gases

耗散超冷原子气体中的量子动力学

• 批准号: 276963779
• 负责人: Professorin Dr. Corinna Kollath
• 金额: --
• 依托单位: Physikalisches Institut
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/276963779?language=en
• 关键词: Quantum; dynamics; dissipative; ultracold; atomic

Quantum correlations play an important role in modern physics and technology. Phenomena relying on correlations, such as high-Tcsuperconductivity or quantum magnetism, give materials unusual properties and form key components of commercially available devices such as sensors or medical instrumentation. Of particular current interest is the dynamics of these correlated many-body systems. For example, efforts to realize a quantum computer rely on the dynamical preparation and manipulation of correlated quantum states. Further, the recent dynamical generation of superconducting properties at room temperature, calls for the understanding and the control of dynamically driven states far from equilibrium. The theoretical description of correlation phenomena and in particular of their dynamics is typically very involved and many fundamental questions are still open. Only recently first efficient theoretical tools have been developed in order to enable the treatement of the quantum dynamics in isolated many-body systems. These have been carefully tested in comparison with experimental results of ultracold quantum gases and open the prospect to explore dynamical effects in a well controlled way. Our aim is to advance the understanding of the fundamental principles of the dynamical phenomena in quantum many-body systems. We will go beyond isolated systems and add the additional coupling to an environment. We will address the fundamental questions as the interplay of interaction and dissipation and its consequence onto the system's dynamics which are far from being understood.

量子关联在现代物理学和技术中发挥着重要作用。高温超导或量子磁性等依赖相关性的现象赋予材料不同寻常的特性，并形成传感器或医疗仪器等商用设备的关键组件。当前特别令人感兴趣的是这些相关多体系统的动力学。例如，实现量子计算机的努力依赖于相关量子态的动态准备和操纵。此外，最近室温下超导特性的动态生成需要理解和控制远离平衡的动态驱动状态。相关现象尤其是其动态的理论描述通常非常复杂，许多基本问题仍然悬而未决。直到最近才开发出第一个有效的理论工具，以便能够处理孤立的多体系统中的量子动力学。这些已经与超冷量子气体的实验结果进行了仔细的比较，并为以良好控制的方式探索动力学效应开辟了前景。我们的目标是增进对量子多体系统动力学现象基本原理的理解。我们将超越孤立的系统，并向环境添加额外的耦合。我们将解决一些基本问题，例如相互作用和耗散的相互作用及其对系统动力学的影响，而这些问题还远未被理解。