The Hubbard model at half a century

Abstract:

Models are abundant in virtually all branches of physics, with some achieving iconic status. The Hubbard model, celebrating its golden jubilee this year, continues to be one of the most popular contrivances of theoretical condensed-matter physics.

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http://libgen.io/scimag/get.php?doi=10.1038/nphys2759&downloadname=&key=2UKAWYC1SRQ8F9A5

http://www.nature.com/nphys/journal/v9/n9/full/nphys2759.html