  A one-dimensional (1D) Bose system with dipole-dipole repulsion is studied at
zero temperature by means of a Quantum Monte Carlo method. It is shown that in
the limit of small linear density the bosonic system of dipole moments acquires
many properties of a system of non-interacting fermions. At larger linear
densities a Variational Monte Carlo calculation suggests a crossover from a
liquid-like to a solid-like state. The system is superfluid on the liquid-like
side of the crossover and is normal in the deep on the solid-like side. Energy
and structural functions are presented for a wide range of densities. Possible
realizations of the model are 1D Bose atom systems with permanent dipoles or
dipoles induced by static field or resonance radiation, or indirect excitons in
coupled quantum wires, etc. We propose parameters of a possible experiment and
discuss manifestations of the zero-temperature quantum crossover.

Strongly Correlated Electrons