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Now Appearing in RMP: Recently Posted Review and Colloquia
Ettore Majorana's life is surrounded by mystery since his disappearance in the late 1930s. He left behind, in only nine published papers, results, however, that are still having impact in physics up to these very days. In this Colloquium the authors discuss from a historical point of view his contributions to the issue of "autoionization," i.e., the problem of localized states immersed in a continuum. Those states were first observed in atomic spectra in the 1930s but since the 1960s autoionization has become a pervasive effect in different areas of physics. Several interesting puzzles in the treatment of Majorana's seminal work in subsequent developments towards the modern theory of autoionization are pointed out.
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