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单词 Cooper pair
释义

Definition of Cooper pair in English:

Cooper pair

nounˈkuːpəpɛːˈko͞opər
Physics
  • 1A loosely bound pair of electrons with opposite spins and moving with the same speed in opposite directions, held to be responsible for the phenomenon of superconductivity.

    Example sentencesExamples
    • They learned that they could use a pair of atoms to simulate the electrons of a Cooper pair.
    • Electrons in these Cooper pairs have opposite values of momentum, meaning that the pairs themselves generally have zero orbital angular momentum.
    • These electron pairs are called Cooper pairs, and as described by Schrieffer, they condense into a single state and flow as a totally directionless fluid.
    • The magnetic field pulls apart the two electrons forming Cooper pairs and also rotates their spins.
    • In that model, pairs of electrons with opposite spin form so-called Cooper pairs with zero total spin.
    1. 1.1 A loosely bound pair of atoms in a superfluid.
      Example sentencesExamples
      • Approximately two years ago, the scientists found a deep and unexpected connection between Bose-Einstein condensates and the bonding of Cooper pairs.
      • Similarly, it is very unlikely for singlet superconductivity to appear in the ferromagnetic state because the exchange interaction forbids the formation of Cooper pairs.
      • One potential source of such particles is the stream of conjoined electrons that exist in superconductors, but no one has been able to drive a wedge between these so-called Cooper pairs.
      • Just as in Bose-Einstein condensation, the Cooper pairs can fall into a single quantum state and thus cause a phase transition to a superconducting or superfluid phase.

Origin

1960s: named after Leon N. Cooper (born 1930), American physicist.

 
 

Definition of Cooper pair in US English:

Cooper pair

nounˈko͞opər
Physics
  • 1A loosely bound pair of electrons with opposite spins and moving with the same speed in opposite directions, held to be responsible for the phenomenon of superconductivity.

    Example sentencesExamples
    • The magnetic field pulls apart the two electrons forming Cooper pairs and also rotates their spins.
    • Electrons in these Cooper pairs have opposite values of momentum, meaning that the pairs themselves generally have zero orbital angular momentum.
    • They learned that they could use a pair of atoms to simulate the electrons of a Cooper pair.
    • These electron pairs are called Cooper pairs, and as described by Schrieffer, they condense into a single state and flow as a totally directionless fluid.
    • In that model, pairs of electrons with opposite spin form so-called Cooper pairs with zero total spin.
    1. 1.1 A loosely bound pair of atoms in a superfluid.
      Example sentencesExamples
      • Just as in Bose-Einstein condensation, the Cooper pairs can fall into a single quantum state and thus cause a phase transition to a superconducting or superfluid phase.
      • Similarly, it is very unlikely for singlet superconductivity to appear in the ferromagnetic state because the exchange interaction forbids the formation of Cooper pairs.
      • Approximately two years ago, the scientists found a deep and unexpected connection between Bose-Einstein condensates and the bonding of Cooper pairs.
      • One potential source of such particles is the stream of conjoined electrons that exist in superconductors, but no one has been able to drive a wedge between these so-called Cooper pairs.

Origin

1960s: named after Leon N. Cooper (born 1930), American physicist.

 
 
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更新时间:2024/12/25 0:51:08