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Universal solutions for interacting bosons in one-dimensional harmonic traps
Thomas Papenbrock
We consider systems of interacting bosons confined to one-dimensional harmonic traps. In the limit of perturbatively weak two-body interactions the system exhibits several universa…
Exact solutions for interacting boson systems under rotation
Thomas Papenbrock, George F. Bertsch
We study a class of interacting, harmonically trapped boson systems at angular momentum L. The Hamiltonian leaves a L-dimensional subspace invariant, and this permits an explicit s…
Rotational spectra of weakly interacting Bose-Einstein condensates
Thomas Papenbrock, George F. Bertsch
We study the spectrum of rotating Bose-Einstein Condensates in the limit of weak repulsive interactions and present analytical and numerical results for energies and wave functions…
Yrast line for weakly interacting trapped bosons
George F. Bertsch, Thomas Papenbrock
We compute numerically the yrast line for harmonically trapped boson systems with a weak repulsive contact interaction, studying the transition to a vortex state as the angular mom…
Nonergodic Behavior of Interacting Bosons in Harmonic Traps
Thomas Papenbrock, George F. Bertsch
We study the time evolution of a system of interacting bosons in a harmonic trap. In the low-energy regime, the quantum system is not ergodic and displays rather large fluctuations…