Intensity-gradient cooling of atoms in a localized-hol low beam*
2004; Science Press; Volume: 53; Issue: 12 Linguagem: Inglês
10.7498/aps.53.4157
ISSN1000-3290
Autores Tópico(s)Quantum Information and Cryptography
ResumoIn this paper, we propose a new scheme to cool and trap neutral ato ms by using a blue-detuned localized hollow beam (LHB), and studied the dynamica l process of intensity-gradient cooling of the trapped atoms in the LHB by means of Monte-Carlo simulations. Our study shows that an ultracold atomic sample wit h a temperature of ～5 μK and an atomic density of 1012—1013/cm 3 can be obtained in our single LHB, and this atomic density can be con trolled by changing the relative aperture of the lens system. So, such a LHB can be used to realize an all-optical atomic Bose-Einstein condensation.
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