Lattice bosons in quartic confinement
arXiv:0706.1297 · doi:10.1140/epjd/e2008-00031-5
Abstract
We present a theoretical study of bose condensation of non-interacting bosons in finite lattices in quartic potentials in one, two, and three dimensions. We investigate dimensionality effects and quartic potential effects on single boson density of energy states, condensation temperature, condensate fraction, and specific heat. The results obtained are compared with corresponding results for lattice bosons in harmonic traps.
revised version, 11 pages including figures, accepted in EPJD
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