M. A. Cazalilla
Published 2002-01-25, updated 2002-09-17Version 5
The ground state properties and low-lying excitations of a (quasi) one-dimensional system of longitudinally confined interacting bosons are studied. This is achieved by extending Haldane's harmonic-fluid description to open boundary conditions. The boson density, one-particle density matrix, and momentum distribution are obtained accounting for finite-size and boundary effects. Friedel oscillations are found in the density. Finite-size scaling of the momentum distribution at zero momentum is proposed as a method to obtain from the experiment the exponent that governs phase correlations. The strong correlations between bosons induced by reduced dimensionality and interactions are displayed by a Bijl-Jastrow wave function for the ground state, which is also derived.
Comments: Final published version. Minor changes with respect to the previous version
Journal: Europhysics Letters 59, 793 (2002)
Low-energy Properties of Electrons and Holes in CuFeS$_2$
Exact results for the spectra of interacting bosons and fermions on the lowest Landau level
Enhanced quantum Zeno effect and bunching in the decay of interacting bosons from an unstable state
