2003/02/11 by Zsolt Gulácsi, Zsolt Gulacsi, D. Vollhardt +1 · 1 citation
Mathematics · Physics and Astronomy · #Quantum and electron transport phenomena #Rare-earth and actinide compounds #Spectral Theory in Mathematical Physics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.91.186401
published as Phys. Rev. Lett. 91, 186401 (2003) · 4 pages, 3 figures
arxiv created 2003/02/11 · openalex publication_date 2003/10/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a class of exact ground states of a three-dimensional periodic Anderson model at 3/4 filling. Hopping and hybridization of d and f electrons extend over the unit cell of a general Bravais lattice. Employing novel composite operators combined with 55 matching conditions the Hamiltonian is cast into positive semidefinite form. A product wave function in position space allows one to identify stability regions of an insulating and a conducting ground state. The metallic phase is a non-Fermi liquid with one dispersing and one flat band.