EXACT JASTROW-GUTZWILLER RESONATING-VALENCE-BOND GROUND-STATE OF THE SPIN 1/2 ANTIFERROMAGNETIC HEISENBERG CHAIN WITH 1/R2 EXCHANGE
EXACT JASTROW-GUTZWILLER RESONATING-VALENCE-BOND GROUND-STATE OF THE SPIN 1/2 ANTIFERROMAGNETIC HEISENBERG CHAIN WITH 1/R2 EXCHANGE
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DOI：
10.1103/physrevlett.60.635
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发表时间：
1988-02-15
影响因子：
8.6
通讯作者：
HALDANE, FDM
中科院分区：
文献类型：
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作者：
HALDANE, FDM
一组Jastrow波函数包含具有r−2交换的一族S=1 2反铁磁链的精确本征态.各向同性模型的基态在这个集合中，与古兹威尔波函数的U→∞极限相同，也被认为是安德森的“共振价键”态。得到了该模型的全集能级；光谱显示出显著的“超多重态”简并，表明存在隐含的连续对称性。
A set of Jastrow wave functions comprises exact eigenstates of a family of S= 1 2 antiferromagnetic chains with r− 2 exchange. The ground state of the isotropic model is in this set, and is identical to the U→∞ limit of the Gutzwiller wave function, also identified as Anderson’s ‘‘resonating-valence-bond’’state. The full set of energy levels of this model is obtained; the spectrum exhibits remarkable ‘‘supermultiplet’’degeneracies suggesting the existence of a hidden continuous symmetry.