Gordillo, M. C.de Soto, Feliciano2014-06-262014-06-262012-01Physical Review A - Atomic, Molecular, and Optical Physics, 2012;85(1)1050-2947http://hdl.handle.net/10433/984We calculated the phase diagram of a pure one-dimensional system of hard-rod bosons when it is loaded in optical lattices of different depths by means of a diffusion Monte Carlo technique. The results were compared with those for a Bose-Hubbard model for the same range of densities and characteristic parameters. Both diagrams were found to be qualitatively similar in the regime in which a one-band Hubbard model is adequate, that comparison being poorer when this condition is not fulfilled.application/pdfenAmerican Physical SocietyBosonic hard rodsOptical latticesjournal articleopen access