Abstract
The density-matrix renormalization group was used to investigate a quasi-one-dimensional system of trapped cold bosonic atoms in an optical lattice. The Bose-Hubbard model was studied for realistic numbers of lattice sites. A rescaled one-particle density matrix characterizes superfluid was shown to be versing with the insulating states. The results show that in the half-width of the interference peak, the superfluid to Mott-transition is most direct.
Original language | English |
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Article number | 031601 |
Pages (from-to) | 031601-1-031601-4 |
Journal | Physical Review A |
Volume | 69 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2004 |
Externally published | Yes |