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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Energy of GA-B<br />
Energy/t<br />
0<br />
-0.2<br />
-0.4<br />
-0.6<br />
-0.8<br />
-1<br />
-1.2<br />
GA<br />
Exact Gutzwiller<br />
Exact (Lieb & Wu)<br />
GA-B<br />
0 2 4 6 8 10 12 14 16 18 20<br />
U/t<br />
Figure 9: Energy as a function of <strong>the</strong> <strong>in</strong>teraction strength.<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. 26