Fig. 4: Behaviour of the output waves for Bloch waves incident to the array of rods array with different in-plane components of k in the x direction.
From: Photonic Hall effect and helical Zitterbewegung in a synthetic Weyl system
The rod array is same as that shown in Fig. 2, with a fixed normalized length of 15. For the incident Bloch wave in the lower-energy state at the incident point Z0 = −3, a shows the two calculated mode coefficients of the output Bloch wave; b, c present x- and y-directional centre-of-mass shifts; and d−f show the corresponding results of the incident Bloch wave with the pseudospin Sz = 0, that is, \(|{\boldsymbol{u}}_{\boldsymbol{k}}(Z_0)\rangle = [1\quad 1]^T/\sqrt 2\) in Eq. 1
