I just noticed that you discard the idea of Nashville Bomb being a DEW. There’s a Lockheed Martin granted patent that talks about coherent matterwave beams. It is based in part on the Bohm-Aharonov effect.


[link to patentimages.storage.googleapis.com (secure)]

From the patents invention summary:

“ According to various aspects of the Subject technology, a directed beam of low-entropy coherent massive particles similar to laser beams may be produced, but with concentrations millions of times higher than any intense laser beams currently available. Furthermore, unlike laser beams or the Bose-Einstein condensate (BEC) (e.g.,a form of coherent matter wave),the Subject technology may produce coherent matter waves that allow both Fermions and Bosons to achieve coherence.”