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 - http://www.scopus.com/inward/record.url?scp=0034246729&partnerID=8YFLogxK
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 -