Strong-Coupling Model for Pulsed Light Propagation and Quantum Kinetics of Driven Electron-Hole Plasma in Quantum Wires

A self-consistent quantum-kinetic model is proposed for studying the strong coupling between ultrafast carrier-scattering dynamics in photo-excited electron-hole plasma in quantum wires and the resonant scattering of an ultrashort light pulse incident on quantum wires. The individual electron and hole distributions in momentum space are further driven by an applied DC electric field along the wires, including a resistive force for momentum relaxation due to intrinsic phonon and Coulomb scattering of photo-excited carriers. Facilitated by a localized longitudinal electromagnetic field, the applied DC field is able to effectively modify an induced transverse polarization field as a quantum back-action of electrons on the propagating light pulse. This strong-coupling model allows us to study a fascinating correlation between the localized electronic response of quantum wires and the spatial-temporal features and phases of the scattered light pulses. Additionally, this strong-coupling theory also makes it possible to reveal a unique correlation between the DC current from the driven electron-hole plasma and the localized longitudinal electromagnetic field due to induced long-lasting plasma oscillations in quantum wires.