| Issue |
Europhys. Lett.
Volume 57, Number 1, January 2002
|
|
|---|---|---|
| Page(s) | 1 - 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2002-00532-1 | |
| 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
Received:
3
August
2001
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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