Figure 2
From: Dzyaloshinskii-Moriya Interaction and Spiral Order in Spin-orbit Coupled Optical Lattices
Tunable parameters in an optical lattice.
(a) Tunneling amplitudes as a function of lattice depth. 
is the hopping due to the kinetic energy, 
is the analytic expression derived in the deep lattice regime and 
is the SO mediated hopping strength. (b) Plot of 
as a function of 
for 
, 
.
