  Recent developments in high-power ultrafast optical technology and emerging
theoretical frameworks in strong-field quantum electrodynamics (SF-QED) are
unveiling nuanced differentiations between the semi-classical and full quantum
mechanical descriptions of physical systems. Here we present a computational
investigation of a novel technique for attosecond optical sensing through time
correlation transduction (TCT) by investigating high-harmonic generation (HHG)
as a representative SF-QED process. TCT is an experimental method to capture
photon-electron interactions at higher harmonic orders by temporarily
correlating the emitted and driving photon fields. This approach enables
resolving the dynamical behavior of optically-driven strong-field phenomena in
quantum materials such as Two-dimensional Materials and Dirac Semimetals down
to 10 attosecond temporal resolution to discover a full quantum explanation.
Predicting and measuring the transition between perturbative and
non-perturbative regimes with attosecond resolution can deepen the
understanding of SF-QED such as HHG. As such, we find that TCT is a powerful
method to pave the way toward the functional characterization of quantum
matter.
