Intensity interferometry was applied to study electron correlations in doubly ionizing ion-atom collisions. In this method, the probability to find two electrons emitted in the same double ionization event with a certain momentum difference is compared to the corresponding probability for two uncorrelated electrons from two independent events. The ratio of both probabilities, the so-called correlation function, is found to sensitively reveal electron correlation effects, but it is rather insensitive to the collision dynamics.
M. Schulz et al., "Electron Correlations Observed through Intensity Interferometry," Physical Review Letters, vol. 84, no. 5, pp. 863-866, American Physical Society (APS), Jan 2000.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.84.863
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© 2000 American Physical Society (APS), All rights reserved.
01 Jan 2000