Cherenkov radiation occurs only when a charged particle moves with a velocity exceeding
the phase velocity of light in that matter. This radiation mechanism creates directional light …

A central challenge in the emerging field of free-electron quantum optics is to achieve strong
quantum interaction and single-photon nonlinearity between a flying free electron and a …

The emerging field of free-electron quantum optics enables electron-photon entanglement
and holds the potential for generating nontrivial photon states for quantum information …

In free space, electrons undergo inelastic scattering in the presence of ponderomotive
potentials generated by light pulses and standing light waves. The resulting modulated …

Rapid progress in precision nanofabrication and atomic design over the past 50 years has
ushered in a succession of transformative eras for molding the generation and flow of light …

We propose free-electron Rabi oscillation by creating an isolated two-level system in a
synthetic energy space induced by laser. The {\pi}/2-pulse and {\pi}-pulse in synthetic Rabi …

The Smith–Purcell effect allows for coherent free-electron-driven compact light sources over
the entire electromagnetic spectrum. Intriguing interaction regimes, with prospects for …

The Jaynes-Cummings Hamiltonian is at the core of cavity quantum electrodynamics;
however, it relies on bound-electron emitters fundamentally limited by the binding Coulomb …

Recent advances in ultrafast electron emission, microscopy, and diffraction have
demonstrated a remarkable ability to manipulate free electrons with quantum coherence …