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Journal Article

Decoherence-Induced Universality in Simple Metal Cluster Photoelectron Angular Distributions


Rost,  Jan M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Piechaczek, A., Bartels, C., Hock, C., Rost, J. M., & von Issendorff, B. (2021). Decoherence-Induced Universality in Simple Metal Cluster Photoelectron Angular Distributions. Physical Review Letters, 126(23): 233201. doi:10.1103/PhysRevLett.126.233201.

Cite as: https://hdl.handle.net/21.11116/0000-0008-F6A9-4
Measured angular distributions of photoelectrons from size-selected copper and sodium cluster anions are demonstrated to exhibit a universal behavior independent of the initial electron state, cluster size, or material, which can be traced back to momentum conservation upon photoemission. Quantum simulations reproduce the universality under the assumption that multielectron dynamics localizes the emission on the cluster surface and renders the cluster opaque to photoelectrons, thereby quenching interference effects that would otherwise obscure this almost classical behavior.