Variational states for the spin-Peierls system

authored by: Holger Frahm, John Schliemann
Abstract: We introduce a family of Jastrow pair product states for quasi-one-dimensional spin systems. Depending on a parameter they interpolate between the resonating valence-bond ground state of the Haldane-Shastry model describing a spin liquid and the (dimerized) valence-bond solid ground states of the Majumdar-Ghosh spin chain. These states are found to form an excellent basis for variational studies of Heisenberg chains with next-nearest-neighbor interactions and bond alternation as realized in the spin-Peierls system CuGeO(Formula presented).
Organisation(s): Institute of Theoretical Physics
External Organisation(s): University of Bayreuth
Type: Article
Journal: Physical Review B - Condensed Matter and Materials Physics
Volume: 56
Pages: 5359-5365
No. of pages: 7
ISSN: 1098-0121
Publication date: 01.09.1997
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Electronic version(s): https://doi.org/10.1103/PhysRevB.56.5359 (Access: Unknown)
https://doi.org/10.15488/5086 (Access: Open)