Dynamical Self-Trapping of Vibrons in Quasi-One-Dimensional Lattice

1989 ◽  
Vol 58 (5) ◽  
pp. 1639-1643 ◽  
Author(s):  
Shozo Takeno
2007 ◽  
Vol 21 (02n03) ◽  
pp. 139-154 ◽  
Author(s):  
J. H. ASAD

A first-order differential equation of Green's function, at the origin G(0), for the one-dimensional lattice is derived by simple recurrence relation. Green's function at site (m) is then calculated in terms of G(0). A simple recurrence relation connecting the lattice Green's function at the site (m, n) and the first derivative of the lattice Green's function at the site (m ± 1, n) is presented for the two-dimensional lattice, a differential equation of second order in G(0, 0) is obtained. By making use of the latter recurrence relation, lattice Green's function at an arbitrary site is obtained in closed form. Finally, the phase shift and scattering cross-section are evaluated analytically and numerically for one- and two-impurities.


1986 ◽  
Vol 33 (6) ◽  
pp. 3973-3975 ◽  
Author(s):  
David Emin

Sign in / Sign up

Export Citation Format

Share Document