Papers
Topics
Authors
Recent
Gemini 2.5 Flash
Gemini 2.5 Flash
157 tokens/sec
GPT-4o
8 tokens/sec
Gemini 2.5 Pro Pro
46 tokens/sec
o3 Pro
4 tokens/sec
GPT-4.1 Pro
38 tokens/sec
DeepSeek R1 via Azure Pro
28 tokens/sec
2000 character limit reached

Zeptosecond Electron Pulse Train and Ultrafast Coherent Control of Quantum States via Multiphoton Inelastic Cherenkov Diffraction (2507.02587v1)

Published 3 Jul 2025 in physics.optics

Abstract: We investigate the quantum dynamics of fermionic particles interacting with a laser field in a gaseous medium, in the regime of inelastic diffraction scattering on the phase lattice of a slowed travelling wave, below the critical field of induced Cherenkov process. Using a relativistic quantum kinetic framework and numerical solutions of Dirac equation in the rest frame of the slowed wave, we analyze the evolution of actual electron wave packets and beams at the inelastic scattering on the actual laser pulses of finite duration. Our results reveal coherent multiphoton exchange involving up to $10{4}$ photons and the emergence of attosecond-zeptosecond electron sub-bunches after the free-space propagation. The pulse compression by such mechanism is robust to laser pulse duration but sensitive to the initial momentum spread of the particles/beams. We propose a mechanism to achieve electron pulses in zeptosecond time scales with potentiality for ultrafast coherent control of quantum states that opens new avenues in high-resolution temporal structuring of electron beams for time-resolved quantum technologies and attosecond-zeptosecond science, as well as, for application in high-resolution electron microscopy.

Summary

We haven't generated a summary for this paper yet.