New Types of Off-Diagonal Long Range Order in Spin-Chains

Preprint

17 November 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9411074

Abstract

We discuss new possibilities for Off-Diagonal Long Range Order (ODLRO) in spin chains involving operators which add or delete sites from the chain. For the Heisenberg and Inverse Square Exchange models we give strong numerical evidence for the hidden ODLRO conjectured by Anderson \cite{pwa_conj}. We find a similar ODLRO for the XY model (or equivalently for free fermions in one spatial dimension) which we can demonstrate rigorously, as well as numerically. A connection to the singlet pair correlations in one dimensional models of interacting electrons is made and briefly discussed.

Keywords

DIAGONAL LONG RANGE
LONG RANGE ORDER
ORDER IN SPIN
SPIN CHAINS
RANGE ORDER
ODLRO
CITE

All Related Versions

Version 1, 1994-11-17, ArXiv
Published version: Physical Review Letters, 74 (26), 5256.

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