Use of Rydberg atoms to control electron temperatures in ultracold plasmas T. Pohl, D. Comparat, N. Zahzam, T. Vogt, P. Pillet and T. Pattard Eur. Phys. J. D, 40 1 (2006) 45-50 Published online: 15 June 2006 DOI: 10.1140/epjd/e2006-00134-y