Accelerated Thermalisation of 39K atoms in a Magnetic Trap with Superimposed Optical Potential
| Autor: | Nath, Dipankar, Easwaran, R Kollengode, Rajalakshmi, G., Unnikrishnan, C. S. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of Physics B: Atomic, Molecular and Optical Physics 46 (2013) 155303 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0953-4075/46/15/155303 |
| Popis: | We report the rapid accelerated thermalisation of Potassium 39 K atoms loaded in a magnetic trap, in the presence of a single dipole trap beam. More than an order of magnitude reduction in the thermalisation time, to less than a second, is observed with the focused off- resonant beam occupying only 0.01% of the volume of the magnetic trap. The cold atoms are loaded from a Magneto-Optical Trap(MOT) of 39 K that has gone through a compressed MOT and sub-Doppler cooling stage. The atoms are prepared in the magnetically stretched |F = 2, mF = 2> state prior to loading into the hybrid trap. We also report a direct loading of 39 K atoms, prepared in the state |F = 1>, into a single beam dipole trap. Comment: Submitted to Journal of Physics B: Atomic, Molecular and Optical Physics |
| Databáze: | arXiv |
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