Quantum Gas in a Box

Zoran Hadzibabic (Cambridge)

For the past two decades harmonically trapped ultracold atomic gases have been used with great success to study fundamental many-body physics in a flexible experimental setting. Recently, we achieved the first atomic Bose-Einstein condensate in an essentially uniform potential of an optical-box trap [1], which has opened new possibilities for closer connections with other many-body systems and the theories that rely on the translational symmetry of the system. I will present some of our recent experiments on this new system, including the study of the (Kibble-Zurek) dynamics of spontaneous symmetry breaking in a quenched homogeneous gas [2].

[1] A. L. Gaunt et al., Phys. Rev. Lett. 110, 200406 (2013)
[2] N. Navon et al., Science 347, 167 (2015)