Bose-Einstein condensation in a dilute rubidium-87 gas

Christopher J. Myatt

Jacek Kasprzak, Maxime Richard, R. André +1 more

Bose-Einstein condensation, predicted for a gas of non interacting bosons in 1924 by Einstein, has been demonstrated for the first time in 1995 in a dilute gas of rubidium atoms at temperatures below 10−6 K. In this work, it is shown that Bose-Einstein condensation can be achieved at around 15 − 20 K in a solid state system by using microcavity polaritons, which are composite bosons of mass ten billion times lighter than that of rubidium atoms.

Daniel Frese

王育竹, Shuyu Zhou, 龙全 +2 more

We report the realization of Bose-Einstein condensation (BEC) in dilute rubidium gas. The BEC was achieved in a quadrupole and Ioffe configuration trap. The number of condensed atoms is around 4 X 10(4) in total 5 X 10(5), and the transition, temperature is 250 nK. We have studied the light scattering of the atom cloud and the condensate in a tightly confined magnetic trap. We show that it is possible to use the diffraction patterns in the near-resonant imaging of the trapped cold atomic samples to give the information of the BEC phase transition.

Yuzhu Wang, Shuyu Zhou, Long Quan +2 more

We report the realization of Bose-Einstein condensation (BEC) in dilute rubidium gas. The BEC was achieved in a quadrupole and Ioffe configuration trap. The number of condensed atoms is around 4 × 10 4 in total 5 × 10 5 , and the transition temperature is 250 nK. We have studied the light scattering of the atom cloud and the condensate in a tightly confined magnetic trap. We show that it is possible to use the diffraction patterns in the near-resonant imaging of the trapped cold atomic samples to give the information of the BEC phase transition.

J. R. Ensher