Cooper pair


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Cooper pair

n.
A pair of electrons in a superconducting material that are weakly attracted and bound to each other by their interactions with the lattice, despite their electrostatic repulsion.

[After Leon Cooper.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cooper pair

n
(General Physics) physics a pair of weakly bound electrons responsible for the transfer of charge in a superconducting material
[C20: named after Leon Neil Cooper (born 1930), US physicist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Suppose that we deal with a Cooper pair condensate inside a superconductor.
[1, 2]) but simultaneously strongly reduces the heat capacity and triggers the emission of neutrino pairs through neutral weak currents caused by the nucleon Cooper pair breaking and formation (PBF) processes in thermal equilibrium.
Previously, the cooper pair effect was not associated with photons.
Assessment of pair dissociation can be performed by comparing ionization potentials of indium and oxygen atoms with the depairing energy (i.e., the energy for breaking up a Cooper pair) in indium oxide.
In principle, a weak attraction mechanism may stimulate the formation of a Cooper pair with one electron in one nanotube and the second electron in one of its nearest neighbors.
Later, Animalou [14] and Animalou and Santilli [15] extended the model to consider the Cooper pair in superconductivity as a hadronic bound state of two identical electrons.
Researchers at NIST uncovered an important clue to this mystery by showing that a previously unappreciated factor has a strong effect on the amount of unpaired electrons in Cooper pair devices.
Two electrons mutually attracted to positively charged ions in a material lattice can couple to form a Cooper pair, which is crucial for superconductivity.
The second term mainly accounts for the contribution of photon-excited quasiparticles; since it requires the breaking of a Cooper pair, it is basically zero for [??][omega] < 2[DELTA](T).However, there is a small contribution possible of quasiparticles thermally excited across the gap for T [??] [T.sub.c].
Topics include quantum cryptography with bipartite bound entangled states, communications channels in infinite dimensions, thermal entanglement in infinite dimensional systems, information processing with low-dimensional systems, algorithms and complexity, error correction and fault tolerance, classical and quantum fingerprinting in one-way communication, state transfer in permanently coupled chains, quantum walk asymptotics, and applications topics ranging from cavity quantum electrodynamics to carbon nanotubes and Cooper pair splitting by Tomonaga-Luttinger liquid, solid state, entangled light from optical time boundaries and working from network complexity to time complexity with optimal control.