Peierls-insulator Mott-insulator transition in 1D

摘要

In an attempt to clarify the nature of the crossover from a Peierls band insulator to a Mott Hubbard insulator, we analyze ground-state and spectral properties of the one-dimensional half-filled Holstein-Hubbard model using exact diagonalization techniques. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 6]