Localisation of excitations in disordered 2D Bose-Einstein condensates

无序二维玻色-爱因斯坦凝聚体中激发的局域化

• 批准号: 26825444
• 负责人: Dr. Cord Müller
• 金额: --
• 依托单位: Arbeitsgruppe Theoretische Festkörperphysik und Quanteninformation
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/26825444?language=en
• 关键词: Localisation; excitations; disordered; 2D; Bose

Ultracold atomic gases can be manipulated through electromagnetic fields in a very versatile and precise manner. The present research program focuses on quantum transport properties of bosonic gases in the presence of interaction and disorder. Specifically, we consider low-energy excitations of interacting 2D Bose-Einstein condensates that are scattered by inhomogeneities. The scientific goal is to determine whether the strong localization threshold of excitations marks the transition from the superfluid to the Bose glass phase of the entire condensate.

超冷原子气体可以通过电磁场以非常通用和精确的方式进行操纵。目前的研究计划集中在相互作用和无序存在下玻色子气体的量子输运性质。具体来说，我们考虑低能量激发的相互作用的二维玻色-爱因斯坦凝聚体，散射的不均匀性。科学的目标是确定激发的强局部化阈值是否标志着整个凝聚体从超流体到玻色玻璃相的转变。