Symmetry breaking

Explicit symmetry breaking

Quantum mechanics

Diabatic

Curvature

Semiclassical physics

Classical mechanics

Berry connection and curvature

Physics

Nonlinear system

T-symmetry

Mathematics

Quantum electrodynamics

Superconductivity

Geometric phase

Spontaneous symmetry breaking

Condensed matter physics

Geometry

Quantum

Symmetry (geometry)

Adiabatic process

Chiral symmetry breaking

Quasiparticle

Physical Review Research

This work generalizes the theory of nonlinear optical response in terms of the anomalous acceleration of the electronic quasiparticle, thus making the physical origin of the semiclassical contributions and the shift and injection currents transparent for materials with broken time-reversal symmetry.

Consequences of time-reversal-symmetry breaking in the light-matter interaction: Berry curvature, quantum metric, and diabatic motion