Cooper pair dispersion relation in two dimensions
  The Cooper pair binding energy {\it vs.} center-of-mass-momentum dispersion relation for Bose-Einstein condensation studies of superconductivity is found in two dimensions for a renormalized attractive delta interaction. It crosses over smoothly from a linear to a quadratic form as coupling varies from weak to strong. 
S. K. Adhikari, M. Casas, A. Puente, A. Rigo, M. Fortes, M. A.   Sol\'is, M. de Llano, A. A. Valladares, O. Rojo