Sub-Doppler laser cooling and magnetic trapping of erbium

Details Sub-Doppler laser cooling and magnetic trapping of erbium Sub-Doppler laser cooling and magnetic trapping of erbium

2008-02-06

arxiv.org/abs/0802.0836v1

Phys. Rev. A 76, 053418 (2007)

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.76.053418

We investigate cooling mechanisms in magneto-optically and magnetically trapped erbium. We find efficient sub-Doppler cooling in our trap, which can persist even in large magnetic fields due to the near degeneracy of two Lande g factors. Furthermore, a continuously loaded magnetic trap is demonstrated where we observe temperatures below 25 microkelvin. These favorable cooling and trapping properties suggest a number of scientific possibilities for rare-earth atomic physics, including narrow linewidth laser cooling and spectroscopy, unique collision studies, and degenerate bosonic and fermionic gases with long-range magnetic dipole coupling.

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