Figure 5

Eigenvalues of the lowest 5 eigenstates as a function of J. Inset: the first 4 quasi-degenerate excited states. The size of the system is chosen as N = 103.

Eigenvalues of the lowest 5 eigenstates as a function of J. Inset: the first 4 quasi-degenerate excited states. The size of the system is chosen as N = 103.