Single impurity in a dipolar Bose-Einstein condensate

单个杂质与量子浴相互作用是一种简单但丰富的多体范例，涉及从凝聚态物理到量子信息论再到粒子物理的广泛领域。该项目的目的是使用高度可控的Erb原子超冷浴平台来实验探索这一物理，其中可以嵌入钾杂质。Er原子的特殊特征是它们的大磁偶极矩，这导致了长程和各向异性的偶极-偶极相互作用，以及冷原子系统中常见的短程接触相互作用。这为从极化子物理到开放量子系统中的信息流等一系列主题开辟了新的途径。该项目属于EPSRC冷原子和分子研究领域，冷原子是其中一个主题或研究领域。

A single impurity interacting with a quantum bath is a simple (to state) yet rich many-body paradigm that is relevant across a wide sweep of fields from condensed matter physics to quantum information theory to particle physics. The aim of this project is to experimentally explore this physics using the highly controllable platform of a ultracold bath of Erbium atoms in which potassium impurities can be imbedded. The special feature of Erbium atoms is their large magnetic dipole moments which result in long-range and anisotropic dipole-dipole interactions in addition to the short-range contact interactions more normally seen in cold atom systems. This opens new avenues in a range of topics from polaron physics to information flow in open quantum systems.This project falls within the EPSRC Cold atoms and molecules research areas where cold atoms is one of the themes or research areas.