Theory of a resonantly interacting impurity in a Bose-Einstein condensate
Moritz Drescher, Manfred Salmhofer, Tilman Enss
Abstract
This paper investigates an impurity particle that strongly perturbs a surrounding Bose-Einstein condensate. The authors propose a new theoretical description of locally deformed Bose gases that includes strong short-range correlations, which leads to a nonlocal extension of Gross-Pitaevskii theory.
Topics & Concepts
ImpurityPhysicsCondensed matter physicsParticle (ecology)Atomic physicsExtension (predicate logic)Quantum mechanicsQuantum electrodynamicsField (mathematics)ScatteringCold Atom Physics and Bose-Einstein CondensatesStrong Light-Matter InteractionsOptical properties and cooling technologies in crystalline materials