Figure 7
The center-of-mass momentum Q.
(a) Q, which is derived respectively from the state-of-the-art DMRG calculations (Symbols) and analytical Eq. (12) (Solid line), as a function of the SOC strength, when h/t = 1.5, n = 1 and L = 60. In the analytical result, the population imbalance m is also obtained from the state-of-the-art DMRG calculations. (b) Q as a function of the population imbalance, when λ/t = 0.06, n = 1 and L = 60. (c,d) are the same as those of (a,b), but with L = 100.
