Research Papers in Physics and Astronomy
Date of this Version
PHYSICAL REVIEW LETTERS 127, 180602 (2021). DOI: 10.1103/PhysRevLett.127.180602
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.
Used by permission.