Uniform Bose gases
For almost 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 . This opens unprecedented possibilities for closer connections with other many-body systems and the textbook models that rely on the translational symmetry of the system. I will present our first experiments on this new system, including the first observation of the quantum Joule-Thomson effect , which was theoretically predicted more than 70 years ago.
 A. L. Gaunt et al., Phys. Rev. Lett. 110, 200406 (2013)
 T. F. Schmidutz et al., Phys. Rev. Lett. 112, 040403 (2014)
Host: Gretechen Campbell