Non-Poissonian Ultrashort Nanoscale Electron Pulses
Sam Keramati, Will Brunner, T. J. Gay, Herman Batelaan
2021Lincoln (University of Nebraska)16 citations
Abstract
The statistical character of electron beams used in current technologies, as described by a stream of particles, is random in nature. Using coincidence measurements of femtosecond pulsed electron pairs, we report the observation of sub-Poissonian electron statistics that are nonrandom due to two-electron Coulomb interactions, and that exhibit an antibunching signal of 1 part in 4. This advancement is a fundamental step toward observing a strongly quantum degenerate electron beam needed for many applications, and in particular electron correlation spectroscopy.
Topics & Concepts
PhysicsFemtosecondElectronAtomic physicsCathode rayDegenerate energy levelsCoulombSpectroscopyElectron spectroscopyQuantum mechanicsLaserElectron and X-Ray Spectroscopy TechniquesAdvanced Electron Microscopy Techniques and ApplicationsIntegrated Circuits and Semiconductor Failure Analysis