A two-dimensional quantum gas in a magnetic trap

Karina Merloti (1) , Romain Dubessy (2) , Laurent Longchambon (2) , Aurélien Perrin (2) , Paul-Eric Pottie (2) , Vincent Lorent (2) , Hélène Perrin (2)

1 LPL - Laboratoire de Physique des Lasers
2 Condensat de Bose-Einstein

We present the first experimental realization of a two-dimensional quantum gas in a purely magnetic trap dressed by a radio frequency field in the presence of gravity. The resulting potential is extremely smooth and very close to harmonic in the two-dimensional plane of confinement. We fully characterize the trap and demonstrate the confinement of a quantum gas to two dimensions. The trap geometry can be modified to a large extent, in particular in a dynamical way. Taking advantage of this possibility, we study the monopole and the quadrupole modes of a two-dimensional Bose gas.

Domaines: Gaz Quantiques [cond-mat.quant-gas]

Karina Merloti, Romain Dubessy, Laurent Longchambon, Aurélien Perrin, Paul-Eric Pottie, et al.. A two-dimensional quantum gas in a magnetic trap. New Journal of Physics, 2013, 15, pp.033007. ⟨10.1088/1367-2630/15/3/033007⟩. ⟨hal-00798935⟩