2017/02/28 by A. Gover, Avraham Gover, Yiming Pan · 65 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Advanced Electron Microscopy Techniques and Applications #Atomic physics #Electron #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Physics #Quantum #Quantum electrodynamics #Quantum mechanics #Recoil #Wave packet #physics.acc-ph #physics.optics #quant-ph
paper · pdf · doi:10.1016/j.physleta.2018.03.049
published in Physics Letters A 382(23), 1550-1555 (Elsevier BV) · 33 pages, 5 figures, supplementary materials with figures and videos
arxiv created 2018/03/07 · openalex created_date 2018/03/29 · openalex publication_date 2018/04/09 · arxiv updated 2018/04/23 · openalex updated_date 2026/08/05
In the foundation of quantum mechanics, the spatial dimensions of electron wavepacket are understood only in terms of an expectation value - the probability distribution of the particle location. One can still inquire how the quantum electron wavepacket size affects a physical process. Here we address the fundamental physics problem of particle-wave duality and the measurability of a free electron quantum wavepacket. Our analysis of stimulated radiative interaction of an electron wavepacket, accompanied by numerical computations, reveals two limits. In the quantum regime of long wavepacket size relative to radiation wavelength, one obtains only quantum-recoil multiphoton sidebands in the electron energy spectrum. In the opposite regime, the wavepacket interaction approaches the limit of classical point-particle acceleration. The wavepacket features can be revealed in experiments carried out in the intermediate regime of wavepacket size commensurate with the radiation wavelength.