Fig. 5: Phenomenon of the underbarrier resonant trapping.
From: Few-fermion resonant tunneling and underbarrier trapping in asymmetric potentials
For different system sizes, L = 4 (a) and L = 20 (b), the evolution of \(\langle {\hat{n}}_{j}\rangle\) is shown color-coded on a logarithmic scale. The initial state is a doublon positioned at the first site. The interaction strength is U = 10J. The small schematic illustrations above each panel represent the potential barrier with circles indicating the site j* where the potential barrier satisfies the resonant condition h/2 = U.
