= Leon Cooper
{c}
{tag=Physicist}
{title2=1930–2024}
{wiki}
= Leon Neil Cooper
{c}
{synonym}
= Leon N Cooper
{c}
{synonym}
= L. N. Cooper
{c}
{synonym}
<Leon Cooper> showed that a filled <Fermi sea> changes the physics of <electron> pairing. In the idealized problem, even a weak attractive interaction in an <energy> shell above the <Fermi surface> can produce a bound pair. The result concerns <electrons> in the presence of the filled sea, so it is not simply the problem of two isolated <electrons> in empty space. This instability supplied a key microscopic ingredient for <BCS theory> and the <Cooper pair> description of <superconductivity>.<Bound Electron Pairs in a Degenerate Fermi Gas by Leon Neil Cooper>[Physical Review 104, 1189 (1956), bound-pair problem above a degenerate sea]{ref}
A <physicist>.<Professional profile of Leon Neil Cooper>[Independent professional profile]{ref}https://physics.brown.edu/news/2024-10-30/leon[Independent professional profile]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Leon_Cooper_1972_(Portrait_cropped).jpg?width=260]
{title=Portrait of <Leon Cooper>}
{description=Associated Press; 20 October 1972; existing Commons crop by Wabbuh. Public domain in the United States: publication without copyright notice (PD-US-no-notice). https://commons.wikimedia.org/wiki/File:Leon_Cooper_1972_(Portrait_cropped).jpg[Source usage terms], via Wikimedia Commons.}
{source=https://commons.wikimedia.org/wiki/File:Leon_Cooper_1972_(Portrait_cropped).jpg}
{width=260}
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