Variational study of the neutron resonance mode in the cuprate superconductors

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Li, Tao
Yang, Fan
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Abstract
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A Gutzwiller-type variational wave function is proposed for the neutron resonance mode in the cuprate superconductors. An efficient re-weighting technique is devised to perform variational Monte Carlo simulation on the proposed wave function which is composed of linearly superposed Gutzwiller projected Slater determinants. The calculation, which involves no free parameter, predicts qualitatively correct behavior for both the energy and the spectral weight of the resonance mode as functions of doping.
Comment: 9 pages
Keywords
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity
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