Universality in bosonic dimer-dimer scattering
  Bosonic dimer-dimer scattering is studied near the unitary limit using momentum-space equations for the four-particle transition operators. The impact of the Efimov effect on the dimer-dimer scattering observables is explored and a number of universal relations is established with high accuracy. The rate for the creation of Efimov trimers via dimer-dimer collisions is calculated. 
A. Deltuva
physics.atom-ph cond-mat.quant-gas nucl-th