New Paired-Wavefunction for the Frustrated Antiferromagnetic Spin-Half Chain

Z. N. C. Ha

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arXiv · cond-mat/9712015

New Paired-Wavefunction for the Frustrated Antiferromagnetic Spin-Half Chain

Z. N. C. Ha

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Abstract

I propose a new paired-wavefunction with a parameter that continuously interpolates from the 1D Jastrow-product to the Majumdar-Ghosh dimer-wavefunction appropriate for the frustrated Heisenberg $S = 1/2$ antiferromagnet. This spin paired-state constructed in $S_z$ basis is an alternative to the well-known resonating-valence-bond basis state for describing the $S = 0$ ground-state with no apparent long-range spin order. Some numerical evidences are presented.

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BibTeX RIS

Z. N. C. Ha. 1997-12-01. New Paired-Wavefunction for the Frustrated Antiferromagnetic Spin-Half Chain. https://arxiv.org/abs/cond-mat/9712015

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