Figure 5
From: Metallicity in a Holstein-Hubbard Chain at Half Filling with Gaussian Anharmonicity

A 3D picture showing the behavior of |U eff | (blue) and 4t eff (red) with U and α.
From: Metallicity in a Holstein-Hubbard Chain at Half Filling with Gaussian Anharmonicity

A 3D picture showing the behavior of |U eff | (blue) and 4t eff (red) with U and α.