Experimental observation of a generalized Gibbs ensemble.
Langen T, Erne S, Geiger R, Rauer B, Schweigler T, Kuhnert M, Rohringer W, Mazets IE, Gasenzer T, Schmiedmayer J. Experimental observation of a generalized Gibbs ensemble. Science. 2015 Apr 10; 348(6231):207-11.