Understanding correlations and localization in the Hubbard model ...
Understanding correlations and localization in the Hubbard model ...
Understanding correlations and localization in the Hubbard model ...
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Insulat<strong>in</strong>g Gutzwiller<br />
χ 4<br />
0.2<br />
0.15<br />
0.1<br />
0.05<br />
0<br />
L=36<br />
L=48<br />
L=60<br />
L=72<br />
U 4<br />
0.67<br />
0.66<br />
0.65<br />
0.64<br />
0.63<br />
0.62<br />
0 2 4<br />
γ<br />
0 2 4<br />
γ<br />
Figure 13: χ 4 <strong>and</strong> U 4 as a function of <strong>the</strong> variational parameter<br />
γ for an <strong>in</strong>sulat<strong>in</strong>g wavefunction.<br />
<strong>Underst<strong>and</strong><strong>in</strong>g</strong> <strong>correlations</strong> <strong>and</strong> <strong>localization</strong> <strong>in</strong> <strong>the</strong> <strong>Hubbard</strong> <strong>model</strong> from variational calculations – p. 38
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