Gutzwiller projected wave functions in the fermionic theory of S=1 spin chains
Name
Liu-2012-Gutzwiller projected wave functions in the.pdf
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471.87 KB
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Checksum (MD5)
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Author(s)
Liu, Zheng-Xin
Zhou, Yi
Tu, Hong-Hao
Wen, Xiao-Gang
Ng, Tai-Kai
Date Issued
May 2012
Journal
Physical Review B
Publisher
American Physical Society
Citation
Liu, Zheng-Xin et al. “Gutzwiller Projected Wave Functions in the Fermionic Theory of S=1 Spin Chains.” Physical Review B 85.19 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
We study in this paper a series of Gutzwiller projected wave functions for S=1 spin chains obtained from a fermionic mean-field theory for general S>1/2 spin systems [ Liu, Zhou and Ng Phys. Rev. B 81 224417 (2010)] applied to the bilinear-biquadratic (J-K) model. The free-fermion mean-field states before the projection are 1D paring states. By comparing the energies and correlation functions of the projected pairing states with those obtained from known results, we show that the optimized Gutzwiller projected wave functions are very good trial ground-state wave functions for the antiferromagnetic bilinear-biquadratic model in the regime K
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.85.195144
