Coupled one-dimensional chains in two-dimensional dipolar bosons

We present the results of computer simulations at low temperature of a two- dimensional system of dipolar bosons, with dipole moments aligned at an arbitrary angle with respect to the direction perpendicular to the plane. The phase diagram includes a homogeneous superfluid phase, as well as triangular and striped crystalline phases, as the particle density and the tilt angle are varied. In the striped solid, no phase coherence among stripes and consequently no “supersolid” phase are found, in disagreement with recent theoretical predictions. We show how meaningful finite-size scaling is necessary, in order to arrive at reliable predictions concerning superfluid behavior.