Figure 3
From: Metallicity in a Holstein-Hubbard Chain at Half Filling with Gaussian Anharmonicity

(a) t eff /t vs. U; (b) dt eff /dU vs. U.
From: Metallicity in a Holstein-Hubbard Chain at Half Filling with Gaussian Anharmonicity

(a) t eff /t vs. U; (b) dt eff /dU vs. U.