Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-10-29
J. Phys. A: Math. Gen. 34 8995(2001)
Physics
Condensed Matter
Strongly Correlated Electrons
15 pages, 9 figures
Scientific paper
10.1088/0305-4470/34/42/317
In this paper we solve one dimensional trapped SU(2) bosons with repulsive $\delta$-function interaction by means of Bethe-ansatz method. The features of ground state and low-lying excited states are studied by numerical and analytic methods. We show that the ground state is an isospin "ferromagnetic" state which differs from spin-1/2 fermions system. There exist three quasi-particles in the excitation spectra, and both holon-antiholon and holon-isospinon excitations are gapless for large systems. The thermodynamics equilibrium of the system at finite temperature is studied by thermodynamic Bethe ansatz. The thermodynamic quantities, such as specific heat etc. are obtained for the case of strong coupling limit.
Gu Shi-Jian
Li You-Quan
Ying Zu-Jian
No associations
LandOfFree
Trapped interacting two-component bosons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Trapped interacting two-component bosons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trapped interacting two-component bosons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-72967