Year: 2001
Type: article
Abstract: The exact N-particle ground-state wave function for a one-dimensional condensate of hard-core bosons in a harmonic trap is employed to obtain accurate numerical results for the one-particle density matrix, occupation number distribution of the natural orbitals, and momentum distribution. Our results show that the occupation of the lowest orbital varies as ${N}^{0.59},$ in contrast to ${N}^{0.5}$ for a spatially uniform system, and N for a true Bose-Einstein condensate.
Source: Physical Review A
Authors: M. D. Girardeau, E. M. Wright, J. M. Triscari
Institution: University of Arizona
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2029419751