TY - JOUR AU - A Rey AU - G Pupillo AU - Charles Clark AU - Carl Williams C2 - Physical Review A (Atomic, Molecular and Optical Physics) DA - 2005-01-01 LA - en M1 - 72 PB - Physical Review A (Atomic, Molecular and Optical Physics) PY - 2005 TI - Ultracold Atoms Confined in an Optical Lattice plus Parabolic Potential: a Closed-form Approach ER -