BoseEinstein condensation and the Simplified Approach to interacting Bosons
Ian Jauslin
2023
Abstract
These are lecture notes for a short course on the Simplified Approach to interacting Bosons. We discuss properties of systems of many interacting Bosons, such as gasses of Helium atoms. We pay special attention to the phenomenon of BoseEinstein condensation, which is a quantum phase in which a positive fraction of particles are all in the same state. We first give an overview of BoseEinstein condensation in noninteracting systems. Next, we introduce the Simplified Approach, and prove some of its properties.
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