Simultaneous magneto-optical trapping of a boson-fermion mixture of metastable helium atoms |
| |
Authors: | Stas R J W McNamara J M Hogervorst W Vassen W |
| |
Institution: | Laser Centre Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands. |
| |
Abstract: | We simultaneously confine fermionic metastable 3He atoms and bosonic metastable 4He atoms in a magneto-optical trap. The trapped clouds, containing up to 1.5 x 10(8) atoms of each isotope, are characterized by measuring ions and metastable helium atoms escaping from the trap. Optical pumping of 3He atoms to a nontrapped hyperfine state is investigated and it is shown that large atom numbers can be confined without additional repumping lasers. Unique possibilities for quantum degeneracy experiments with mixtures of spin-polarized metastable 3He and 4He atoms are indicated. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|