Eugene Wigner

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Definition

Proper noun: - A Hungarian-American physicist: Eugene Paul Wigner was a theoretical physicist and mathematician who made fundamental contributions to nuclear physics, quantum mechanics, and the theory of symmetries in physics. He is renowned for his work on the structure of the atomic nucleus and for formulating the law of conservation of parity.

Usage Examples
  • Proper noun:
    • Eugene Wigner was awarded the Nobel Prize in Physics in 1963.
    • The Wigner-Eckart theorem is a fundamental result in quantum mechanics.
    • Eugene Wigner's work on neutron absorption was crucial for nuclear reactor design.
Advanced Usage
  • "Wigner's friend": A thought experiment in quantum mechanics highlighting the measurement problem, proposed by Eugene Wigner.
    • The paradox of Wigner's friend explores the role of consciousness in quantum theory.
  • "Wigner distribution": In physics and signal processing, a quasiprobability distribution function.
    • The Wigner distribution is used to represent a signal in both time and frequency domains.
  • "Wigner-Eckart theorem": A theorem that simplifies the calculation of matrix elements of tensor operators.
    • Applying the Wigner-Eckart theorem reduces complex matrix elements to a product of a Clebsch-Gordan coefficient and a reduced matrix element.
Variants and Related Words
  • Wignerian (adj): Pertaining to or characteristic of the work or ideas of Eugene Wigner.
    • The paper discusses a Wignerian interpretation of quantum state reduction.
  • Wignerseitz cell (noun): A primitive cell in a crystal lattice, named after physicist Frederick Seitz and Eugene Wigner.
    • The first Brillouin zone is the Wignerseitz cell of the reciprocal lattice.
Synonyms
  • E. P. Wigner: An abbreviated form of his full name.
  • Wigner: The common shortened reference to the physicist in academic contexts.
Related Phrases and Concepts
  • Wigner crystal: A predicted crystalline phase of electrons at very low density.
    • Scientists are searching for evidence of a Wigner crystal in semiconductor systems.
  • Wigner rotation: A relativistic effect where the spin of a particle appears to rotate under a Lorentz boost.
    • Wigner rotation must be accounted for in high-energy particle physics.
  • Wigner's semicircle law: A theorem in random matrix theory describing the eigenvalue distribution of certain large random matrices.
    • Wigner's semicircle law is a foundational result in the field of random matrices.
Noun
  1. United States physicist (born in Hungary) noted for his work on the structure of the atom and its nucleus (1902-1995)

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