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24.11.20 - IRTG Seminar: Krzysztof Jachymski "Charged impurity in a Bose-Einstein condensate"

Dr. Krzysztof Jachymski, Institute of Theoretical Physics, Chair of Complex Systems Modelling, University of Warsaw, Poland
When Nov 24, 2020
from 06:00 AM to 07:00 PM
Where HS I, Physics High Rise // Webinar
Contact Name
Contact Phone 97666
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Charged impurity in a Bose-Einstein condensate

An impurity immersed in a quantum environment can be viewed as a fundamental building block for many-body problems and can give insight into the transport properties of different materials. Ultracold atoms provide here an excellent playground, allowing for precise control of experimental conditions and reaching a wide regime of system parameters. An intriguing possibility is to make use of charged impurities such as atomic ions, which interact more strongly with the background gas. It turns out that the ground state of such a system can be vastly different from the case of neutral particles. I will discuss both static and dynamic properties of ion-atom systems, highlighting the role of the long range of the interaction potential.