@article{141601, author = {A Rey and G Pupillo and Charles Clark and Carl Williams}, title = {Ultracold Atoms Confined in an Optical Lattice plus Parabolic Potential: a Closed-form Approach}, year = {2005}, number = {72}, month = {2005-01-01}, publisher = {Physical Review A (Atomic, Molecular and Optical Physics)}, language = {en}, }