cooper pair: meaning, definition, pronunciation and examples
Very LowTechnical/Scientific
Quick answer
What does “cooper pair” mean?
In physics, a pair of electrons bound together at low temperatures in a superconductor, which can carry electrical current with zero resistance.
Audio
Pronunciation
Definition
Meaning and Definition
In physics, a pair of electrons bound together at low temperatures in a superconductor, which can carry electrical current with zero resistance.
A fundamental quantum mechanical phenomenon where two electrons form a weakly bound state through an interaction with lattice vibrations (phonons), allowing them to move through a material without scattering, enabling superconductivity. The concept is also used metaphorically in other fields to describe a tightly coupled, cooperative duo.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling follows the originator's name (Cooper). Pronunciation of 'Cooper' may have a slight regional variation.
Connotations
Purely technical and academic in both varieties.
Frequency
Extremely rare outside specialized physics literature in both regions.
Grammar
How to Use “cooper pair” in a Sentence
The [material] exhibits superconductivity due to the formation of Cooper pairs.A Cooper pair consists of two [electrons] with opposite spin and momentum.Vocabulary
Collocations
Examples
Examples of “cooper pair” in a Sentence
verb
British English
- The electrons in the lattice can cooper-pair under the right conditions.
- The theory predicts how particles might cooper-pair.
American English
- The electrons in the lattice can Cooper-pair under the right conditions.
- The theory predicts how particles might Cooper-pair.
adjective
British English
- The Cooper-pair state is fragile.
- We observed Cooper-pair tunnelling.
American English
- The Cooper-pair state is fragile.
- We observed Cooper-pair tunneling.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Exclusively used in advanced physics, particularly condensed matter theory, materials science, and quantum mechanics lectures and papers.
Everyday
Never used in everyday conversation.
Technical
The primary domain of use. Central to technical discussions of conventional (BCS) superconductivity, Josephson junctions, and quantum computing (qubits).
Vocabulary
Synonyms of “cooper pair”
Neutral
Weak
Vocabulary
Antonyms of “cooper pair”
Watch out
Common Mistakes When Using “cooper pair”
- Misspelling as 'Couper pair' or 'Cooper Pair' (capitalization is standard for the 'Cooper' part).
- Using it as a countable noun without understanding its quantum mechanical basis (e.g., 'three Coopers pairs').
- Confusing it with any other type of particle pair (e.g., a proton-neutron pair).
FAQ
Frequently Asked Questions
The concept was proposed by physicist Leon Cooper in 1956, forming a key part of the BCS theory of superconductivity (named for Bardeen, Cooper, and Schrieffer).
No, they are not chemical molecules. They are a correlated quantum state where two electrons, despite their Coulomb repulsion, form a weakly bound pair over a distance much larger than the atomic spacing.
In a simplified explanation, the paired state requires a minimum energy (the 'gap') to break. At low temperatures, lattice vibrations (phonons) lack the energy to scatter the pair as a whole, allowing them to carry current without dissipation.
Rarely and only metaphorically, e.g., in business or team dynamics to describe an exceptionally well-coordinated duo whose combined performance exceeds the sum of its parts, analogous to the paired electrons.
In physics, a pair of electrons bound together at low temperatures in a superconductor, which can carry electrical current with zero resistance.
Cooper pair is usually technical/scientific in register.
Cooper pair: in British English it is pronounced /ˈkuːpə peə/, and in American English it is pronounced /ˈkuːpɚ pɛr/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of two electrons 'cooper-ating' perfectly to glide through a metal without any friction, like a pair of ice skaters holding hands.
Conceptual Metaphor
A DANCE PARTNER METAPHOR: Two electrons, which normally repel each other, are metaphorically 'dancing' together in sync due to the music of the crystal lattice, allowing them to move as one cohesive unit through a crowd without bumping into anyone.
Practice
Quiz
What is a Cooper pair?