Volume 57, Number 1, January 2002
|Page(s)||1 - 6|
|Published online||01 September 2002|
Quasi-2D Bose-Einstein condensation in an optical lattice
Laboratorio Europeo di Spettroscopia Nonlineare (LENS),
Istituto Nazionale per la Fisica della Materia,
Dipartimento di Fisica, Università di Firenze
Largo Enrico Fermi, 2, I-50125 Firenze, Italy
Accepted: 18 October 2001
We study the phase transition of a gas of atoms to quantum degeneracy in the combined potential of a harmonically confining magnetic trap and the periodic potential of an optical lattice. For high optical lattice potentials we observe a significant change in the temperature dependency of the population of the ground state of the system. The experimental results are in good agreement with a model assuming the subsequent formation of quasi-2D condensates in the single lattice sites.
PACS: 03.75.Fi – Phase coherent atomic ensembles; quantum condensation phenomena / 32.80.-t – Photon interactions with atoms / 85.35.Be – Quantum well devices (quantum dots, quantum wires, etc.)
© EDP Sciences, 2002
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