Extended Data Fig. 2: Laser-induced Haldane-type hoppings and band structure modification.
From: Light-wave-controlled Haldane model in monolayer hexagonal boron nitride
a,d,g, Examples of \(\langle {\gamma }_{{AA}^{{\prime} }}^{({NNN})}\rangle \) (red) and \(\langle {\gamma }_{{BB}^{{\prime} }}^{({NNN})}\rangle \) (blue) for different vector potentials. The green curve shows the electric field orientation and the arrow shows the sense of rotation of the field. b,e,h, The purple curve shows the vector potential that results from the electric field on the left panel, with the arrow showing its sense of rotation. The red circles show the valley at which the band gap is reduced according to the analytical model. c,f,i, k-resolved populations obtained from a time-dependent simulation of a tight binding model of gapped graphene using the electric field and vector potential in the corresponding left panels (Iω = 2.5 TW/cm2, I2ω = 0.63 TW/cm2, and frequency ω = 0.6 eV).
