Variational states for the spin-Peierls system

URN to cite this document:: urn:nbn:de:bvb:355-epub-282587
DOI to cite this document:: 10.5283/epub.28258

Frahm, Holger ; Schliemann, John

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Date of publication of this fulltext: 24 May 2013 11:56

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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 ...