Correlations and counting statistics of an atom laser |
| |
Authors: | Ottl Anton Ritter Stephan Köhl Michael Esslinger Tilman |
| |
Affiliation: | Institute of Quantum Electronics, ETH Zürich, H?nggerberg, CH-8093 Zürich, Switzerland. |
| |
Abstract: | We demonstrate time-resolved counting of single atoms extracted from a weakly interacting Bose-Einstein condensate of 87Rb atoms. The atoms are detected with a high-finesse optical cavity and single atom transits are identified. An atom laser beam is formed by continuously output coupling atoms from the Bose-Einstein condensate. We investigate the full counting statistics of this beam and measure its second order correlation function g((2))(tau) in a Hanbury Brown-Twiss type experiment. For the monoenergetic atom laser we observe a constant correlation function g((2))(tau)=1.00 +/- 0.01 and an atom number distribution close to a Poissonian statistics. A pseudothermal atomic beam shows a bunching behavior and a Bose distributed counting statistics. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|