A Bose-Einstein condensate in an optical lattice with tunable spacing: transport and static properties
| Autor: | Chiara Fort, Massimo Inguscio, J. E. Lye, Leonardo Fallani |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Optical lattice Condensed matter physics Wave propagation business.industry FOS: Physical sciences Atomic and Molecular Physics and Optics law.invention Standing wave Condensed Matter - Other Condensed Matter Particle in a one-dimensional lattice Laser trapping Lattice constant Optics law Lattice (order) business Bose–Einstein condensate Other Condensed Matter (cond-mat.other) |
| Popis: | In this Letter we report the investigation of transport and static properties of a Bose-Einstein condensate in a large-spaced optical lattice. The lattice spacing can be easily tuned starting from few micrometers by adjusting the relative angle of two partially reflective mirrors. We have performed in-situ imaging of the atoms trapped in the potential wells of a 20 micrometers-spaced lattice. For a lattice spacing of 10 micrometers we have studied the transport properties of the system and the interference pattern after expansion, evidencing quite different results with respect to the physics of BECs in ordinary near-infrared standing wave lattices, owing to the different length and energy scales. 11 pages, 7 figures, revised version (modified figures, extended text) |
| Databáze: | OpenAIRE |
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