File:Gutzwiller Wave Function GWF-energy-d1.jpg
Ground-state energy for the Hubbard model with nearest-neighbor electron transfer and dispersion \(\varepsilon(k)=-2 \cos(k)\) at half band-filling as a function of the Hubbard interaction (full line). The Gutzwiller variational upper bound is shown for comparison (dashed line).
Click on a date/time to view the file as it appeared at that time.
|current||16:43, 18 November 2008||453 × 319 (14 KB)||Florian Gebhard||Ground-state energy of the single-band Hubbard model at half band-filling obtained from the Bethe-Ansatz solution. After minimization of the variational energy functional, the variational ground-state energy of the Gutzwiller wave function provides an exa|