@article{schmidutz2013quantum,
author = {Schmidutz, Tobias F. and Gotlibovych, Igor and Gaunt, Alexander and Smith, Robert P. and Navon, Nir and Hadzibabic, Zoran},
title = {Quantum Joule-Thomson Effect in a Saturated Homogeneous Bose Gas},
year = {2013},
month = {September},
abstract = {We study the thermodynamics of Bose-Einstein condensation in a weakly interacting quasihomogeneous atomic gas, prepared in an optical-box trap. We characterize the critical point for condensation and observe saturation of the thermal component in a partially condensed cloud, in agreement with Einstein’s textbook picture of a purely statistical phase transition. Finally, we observe the quantum Joule-Thomson effect, namely isoenthalpic cooling of an (essentially) ideal gas. In our experiments this cooling occurs spontaneously, due to energy-independent collisions with the background gas in the vacuum chamber. We extract a Joule-Thomson coefficient μ_[JT]>10^9  K/bar , about 10 orders of magnitude larger than observed in classical gases.},
url = {http://approjects.co.za/?big=en-us/research/publication/quantum-joule-thomson-effect-saturated-homogeneous-bose-gas/},
pages = {040403},
journal = {Phys. Rev. Lett},
}