{ "items" : [
    { "id" : "http://dbpedia.org/resource/Cooper_pair"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In condensed matter physics, a Cooper pair or BCS pair is a pair of electrons (or other fermions) bound together at low temperatures in a certain manner first described in 1956 by American physicist Leon Cooper. Cooper showed that an arbitrarily small attraction between electrons in a metal can cause a paired state of electrons to have a lower energy than the Fermi energy, which implies that the pair is bound."] } } }
