Out-of-Equilibrium Dynamics of the Bose-Hubbard Model

Figure 11

Excitation energies ±𝐸^±_𝐤 for 𝑛=1 and 𝑈/𝐽=20 [119]. Adapted figure with permission from K. Sengupta and N. Dupuis, Phys. Rev. A 71, 033629 (2005). Copyright 2005 by the American Physical Society.