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Continuous Loading of a Conservative Potential Trap from an Atomic Beam
We demonstrate the fast accumulation of 52Cr atoms in a conservative potential from a guided atomic beam. Without laser cooling on a cycling transition, a dissipative step involving optical pumping allows us to load atoms at a rate of 2×10^7 s^−1 in the trap. Within less than 100 ms we reach the collisionally dense regime, from which we produce a Bose-Einstein condensate with subsequent evaporative cooling. This constitutes a new approach to degeneracy where Bose-Einstein condensation can be reached without a closed cycling transition, provided that a slow beam of particles can be produced.
@article{contload11, title = {Continuous Loading of a Conservative Potential Trap from an Atomic Beam}, journal = {Physical Review Letters}, abstract = {We demonstrate the fast accumulation of 52Cr atoms in a conservative potential from a guided atomic beam. Without laser cooling on a cycling transition, a dissipative step involving optical pumping allows us to load atoms at a rate of 2×10^7 s^−1 in the trap. Within less than 100 ms we reach the collisionally dense regime, from which we produce a Bose-Einstein condensate with subsequent evaporative cooling. This constitutes a new approach to degeneracy where Bose-Einstein condensation can be reached without a closed cycling transition, provided that a slow beam of particles can be produced.}, volume = {106}, pages = {163002}, publisher = {American Physical Society (APS)}, month = apr, year = {2011}, slug = {contload11}, author = {Falkenau, Markus and Volchkov, Valentin and R{\"u}hrig, Jahn and Griesmaier, Axel and Pfau, Tilman}, month_numeric = {4} }
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