Electronic density of states for a one-dimensional liquid

VALLUZZI, MARCOS G.; MELGAREJO, AUGUSTO A.; MALTZ, ALBERTO; VERICAT, FERNANDO

PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS

Elsevier

Lugar: Amsterdam; Año: 2005 vol. 348 p. 140 - 156

0378-4371

We consider a one-dimensional hard rod liquid with an electronic structure of tight-binding type as a simple model for studying the density of states (DOS) in spatially disordered systems. For a finite number of  rods, the DOS is exactly obtained by using a replica trick. Exact expressions in the thermodynamic limit for some particular cases are also given. The resulting DOSs are interpreted in terms of bonding and antibonding orbitals arising from s-type atomic orbitals