Bose-Einstein condensate in non-homogeneous gravitational field
Igor Kulikov
TL;DR
This paper investigates how a non-homogeneous gravitational field affects the ground state properties, spatial structure, and momentum distribution of a trapped Bose-Einstein condensate with repulsive interactions, using a modified non-linear Schrödinger equation.
Contribution
It introduces a modified non-linear Schrödinger equation to analyze Bose-Einstein condensates in non-homogeneous gravitational fields, extending prior models that assume uniform gravity.
Findings
Gravitational inhomogeneity alters the condensate's spatial structure.
The momentum distribution is affected by the non-uniform gravitational field.
Comparison shows differences from condensates in purely harmonic traps without gravity.
Abstract
Ground state properties of trapped Bose condensate with repulsive interaction in non-homogeneous gravitational field are studied. Spatial structure of Bose condensate and its momentum distributions in 3-D anisotropic trap are considered by the solution of the modified non-linear Schrodinger equation. The results are compared with the corresponding properties of condensate in a harmonic trap without gravitational field.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Quantum, superfluid, helium dynamics · Atomic and Subatomic Physics Research