Fig. 4: Density profiles with a real or a pseudo-magnetic field.
From: Quantized valley Hall response from local bulk density variations

Particle density per cell for the same parameters as in Fig. 3 (flux per primitive cell ατ = 3.255 × 10−4) for a strained sample (solid line) and for a lattice with a homogeneous external magnetic field \(B={B}_{\tau }^{K}\) (dashed line). Green and blue colors correspond to chemical potentials μ1 = 0.02 t (first gap) and μ2 = 0.068 t (second gap), respectively. Note that we plot deviations of the dimensionless density of particles \(\tilde{n}\) from unity, which are of the order of 10−3.