Non-Poissonian Ultrashort Nanoscale Electron Pulses

• DOI: 10.1103/physrevlett.127.180602
• Publication Date: 2021-10-27T14:24:06Z
• Authors: Sam Keramati; Will Brunner; T. J. Gay; Herman Batelaan
• Keywords: Electron spectroscopy

The statistical character of electron beams used in current technologies, as described by a stream particles, is random nature. Using coincidence measurements femtosecond pulsed pairs, we report the observation sub-Poissonian statistics that are nonrandom due to two-electron Coulomb interactions, and exhibit an antibunching signal 1 part 4. This advancement fundamental step toward observing strongly quantum degenerate beam needed for many applications, particular correlation spectroscopy.