Abstract:
:We address the stability of multicharged finite systems driven by Coulomb forces beyond the Rayleigh instability limit. Our exploration of the nuclear dynamics of heavily charged Morse clusters enabled us to vary the range of the pair potential and of the fissibility parameter, which results in distinct fragmentation patterns and in the angular distributions of the fragments. The Rayleigh instability limit separates between nearly binary (or tertiary) spatially unisotropic fission and spatially isotropic Coulomb explosion into a large number of small, ionic fragments. Implications are addressed for a broad spectrum of dynamics in chemical physics, radiation physics of ultracold gases, and biophysics, involving the fission of clusters and droplets, the realization of Coulomb explosion of molecular clusters, the isotropic expansion of optical molasses, and the Coulomb instability of "isolated" proteins.
journal_name
Proc Natl Acad Sci U S Aauthors
Last I,Levy Y,Jortner Jdoi
10.1073/pnas.142253999keywords:
subject
Has Abstractpub_date
2002-07-09 00:00:00pages
9107-12issue
14eissn
0027-8424issn
1091-6490pii
142253999journal_volume
99pub_type
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