Study of effect of surface-optical phonon on bipolaron in quantum-well wire

摘要

The motion of a bipolaron in the quantum-well wire (QWW) has been investigated based on weakly or intermediately coupling with the surface-optical phonon. This kind of system, in some sense, may represent the behaviour of bipolaron in high temperature ceramic superconductiors. The Hamiltonian of the system is first transformed by double unitary transformation, so the some of the relevant quantities, such as the phonon in- duced potential energies V_eso and U_e-so(z), can be calculated.