Collective excitation spectrum of a disordered Hubbard model

Collective excitation spectrum of a disordered Hubbard model

We study the collective excitation spectrum of a d=3 site-disordered Anderson-Hubbard model at half-filling, via a random-phase approximation (RPA) about broken-symmetry, inhomogeneous unrestricted Hartree-Fock (UHF) ground states. We focus in particular on the density and character of low-frequency...

Полное описание

Библиографические подробности
Главные авторы:	Szczech, Y, Tusch, M, Logan, D
Формат:	Journal article
Язык:	English
Опубликовано:	1998

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