Strong correlations

In this month’s issue of Physics World there is and article I wrote with Chris Hooley on strong correlations:

J. Quintanilla & C. Hooley,
The strong-correlations puzzle,
Physics World 22, 32-37 (June 2009)
[ online excerpt; complete print version available here ].

What we basically tried to do is explain what is meant by that term, putting it in a historical context and explaining the role that experiments with ultra-cold atoms, as opposed to “traditional” materials, can play in disentangling the mysteries. We placed a lot of emphasis on the model that John Hubbard (pictured) invented here, in the Harwell campus, in the early sixties, and on neutron scattering, which was responsible for the genesis of that model and is still producing many of the main puzzles today. Polite comments and enlightening  criticism are certainly most welcome.

(By the way, the same issue of Physics World contains Doug Natelson’s article on single-molecule electronics – as he already informed his blog readers – much more promtly than I have, it has to be said!)

2 Responses to Strong correlations

  1. […] in the Hubbard model: an exact solution If you read our article on strong correlations, you may remember that we still do not have an exact solution the Hubbard model in more than one […]

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