S ep 2 01 0 Phase diagram of spin-1 / 2 bosons in one-dimensional optical lattice

L. de Forges de Parny, M. Traynard, F. Hébert, V.G. Rousseau, R.T. Scalettar, and G.G. Batrouni INLN, Université de Nice-Sophia Antipolis, CNRS; 1361 route des Lucioles, 06560 Valbonne, France Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA Physics Department, University of California, Davis, CA 95616 and Centre for Quantum Technologies, National University of Singapore; 2 Science Drive 3 Singapore 117542.