Low-dimensional Bose liquids: beyond the Gross-Pitaevskii approximation

TY - JOUR

T1 - Low-dimensional Bose liquids

T2 - beyond the Gross-Pitaevskii approximation

AU - Kolomeisky, Eugene B.

AU - Newman, T. J.

AU - Straley, Joseph P.

AU - Qi, Xiaoya

PY - 2000/8/7

Y1 - 2000/8/7

N2 - The Gross-Pitaevskii approximation is a long-wavelength theory widely used to describe a variety of properties of dilute Bose condensates, in particular trapped alkali gases. We point out that for short-ranged repulsive interactions this theory fails in dimensions d=2, and we propose the appropriate low-dimensional modifications, which have a universal form. For d=1 we analyze density profiles in confining potentials, superfluid properties, solitons, and self-similar solutions.

AB - The Gross-Pitaevskii approximation is a long-wavelength theory widely used to describe a variety of properties of dilute Bose condensates, in particular trapped alkali gases. We point out that for short-ranged repulsive interactions this theory fails in dimensions d=2, and we propose the appropriate low-dimensional modifications, which have a universal form. For d=1 we analyze density profiles in confining potentials, superfluid properties, solitons, and self-similar solutions.

UR - https://www.scopus.com/pages/publications/0034246729

U2 - 10.1103/PhysRevLett.85.1146

DO - 10.1103/PhysRevLett.85.1146

M3 - Article

AN - SCOPUS:0034246729

SN - 0031-9007

VL - 85

SP - 1146

EP - 1149

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

ER -