Static Impurities in a Weakly Interacting Bose Gas

Abstract

We present a comprehensive discussion of the ground-state properties of dilute D-dimensional Bose gas interacting with a few static impurities. Assuming the short-ranged character of the boson-impurity interaction, we calculated the energy of three- and two-dimensional Bose systems with one and two impurities immersed.

Keywords

• Bose polaron and bipolaron
• effective field theory approach
• induced interaction