^a Soft Matter Systems Research Group, Center for Simulational Physics, The University of Georgia, Athens, GA 30602, USA
E-mail: bachmann@smsyslab.org
Web: http://www.smsyslab.org

^b Institut für Theoretische Physik and Centre for Theoretical Sciences (NTZ), Universität Leipzig, Postfach 100 920, D-04009 Leipzig, Germany
E-mail: gross@itp.uni-leipzig.de

^c Department of Physics, Stetson University, DeLand, FL 32723, USA

^d Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
E-mail: tvogel@lanl.gov

^e Instituto de Física, Universidade Federal de Mato Grosso, 78060-900 Cuiabá, Mato Grosso, Brazil

^f Departamento de Física, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil