Localisation of excitations in disordered 2D Bose-Einstein condensates

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作。目前的研究计划集中在玻色气体在相互作用和无序存在时的量子输运性质。具体地说，我们考虑了相互作用的二维玻色-爱因斯坦凝聚体的低能激发，这些凝聚体被非均匀散射。科学目标是确定激发的强烈局域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。

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.