1.
Phys Rev Lett
; 127(22): 229601, 2021 11 24.
Article
in English
| MEDLINE
| ID: mdl-34889632
2.
Phys Rev Lett
; 127(18): 180602, 2021 Oct 29.
Article
in English
| MEDLINE
| ID: mdl-34767409
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.