Ultrafast space-time optical merons in momentum-energy space
Theory of space-time merons in momentum-energy space Skyrmions are represented by a continuous three-component unit vector field n(r) = (nx(r), ny(r), nz(r))…
Photoinduced non-reciprocal magnetism | Nature Communications
Outline of the derivation of Eq. (4) and Eq. (6) We provide here a brief outline of the…