Wigner's theorem, proved by Eugene Wigner in 1931, is a cornerstone of the mathematical formulation of quantum mechanics. The theorem specifies how physical...

distribution Wigner's friend Wigner's theorem Wigner crystal Wigner D-matrix Wigner effect Wigner energy Wigner lattice Wigner's disease Wigner–Witmer correlation...

The Wigner–Eckart theorem is a theorem of representation theory and quantum mechanics. It states that matrix elements of spherical tensor operators in...

The Wigner–Araki–Yanase theorem, also known as the WAY theorem, is a result in quantum physics establishing that the presence of a conservation law limits...

fundamental importance in quantum physics is further demonstrated by Wigner's theorem. In quantum mechanics, the invariance transformations of complex Hilbert...

Wigner's friend is a thought experiment in theoretical quantum physics, first published by the Hungarian-American physicist Eugene Wigner in 1961, and...

rule Probability axioms Quantum channel Stone's theorem on one-parameter unitary groups Wigner's theorem Ouellette, Jennifer. "Alice and Bob Meet the Wall...

Neumann equation von Neumann extractor von Neumann-Wigner interpretation von Neumann–Wigner theorem von Neumann measurement scheme von Neumann mutual information...

all zero if and only if the distribution is Wigner's semicircle distribution. Wigner surmise The Wigner semicircle distribution is the limit of the Kesten–McKay...

symmetric tensors Wigner's classification – Classification of irreducible representations of the Poincaré group Representation theorem – Proof that every...

\langle \Psi (a,L),\Phi (a,L)\rangle =\langle \Psi ,\Phi \rangle .} Wigner's theorem says that under these conditions, the transformation on the Hilbert...

the result is a theorem of Bargmann. Fortunately, in the crucial case of the Poincaré group, Bargmann's theorem applies. (See Wigner's classification of...

Ward–Takahashi identity Wheeler–Feynman absorber theory Wigner's classification Wigner's theorem Peskin, M.; Schroeder, D. (1995). An Introduction to Quantum...

transform Autocorrelation Gabor–Wigner transform Modified Wigner distribution function Optical equivalence theorem Polynomial Wigner–Ville distribution Cohen's...

maps. (Groenewold's theorem asserts that no such map can have all the ideal properties one would desire.) Regardless, the Weyl–Wigner transform is a well-defined...

In mathematics and theoretical physics, Wigner's classification is a classification of the nonnegative   (   E ≥ 0   )   {\displaystyle ~(~E\geq 0~)~}...

of the rotation group". Rev. Mod. Phys. 34:829-45. 1964: "Note on Wigner’s theorem on symmetry operations". J. Math. Phys. 5:862-68. 1967: "On a Hilbert...

used to define a so-called group extension Gex. In quantum mechanics, Wigner's theorem asserts that if G is a symmetry group, then it will be represented...

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Antiunitary Orthogonal transformation Time reversal Unitary group Unitary operator Unitary matrix Wigner's theorem Unitary transformations in quantum mechanics...

The Ehrenfest theorem, named after Austrian theoretical physicist Paul Ehrenfest, relates the time derivative of the expectation values of the position...

The Wigner quasiprobability distribution (also called the Wigner function or the Wigner–Ville distribution, after Eugene Wigner and Jean-André Ville)...

In physics, the no-cloning theorem states that it is impossible to create an independent and identical copy of an arbitrary unknown quantum state, a statement...

In quantum mechanics, Kramers' theorem or Kramers' degeneracy theorem states that for every energy eigenstate of a time-reversal symmetric system with...

Hilbert space of quantum states unitarily or antiunitarily due to Wigner's theorem (supersymmetry is another matter entirely). Density operators are those...

Wick's theorem is a method of reducing high-order derivatives to a combinatorics problem. It is named after Italian physicist Gian Carlo Wick. It is used...

Madrid Modino 2001, p. 97. Bäuerle & de Kerf 1990, p. 330. See also Wigner's theorem Zwiebach 2022, p. 170. A recent 2013 experiment gives insight regarding...

{\displaystyle k-2} . The phenomenon is also known as the von Neumann–Wigner theorem. In the case of a diatomic molecule (with one parameter, namely the...

Reeh–Schlieder theorem is a result in relativistic local quantum field theory published by Helmut Reeh and Siegfried Schlieder in 1961. The theorem states that...

In mathematics, Hurwitz's theorem is a theorem of Adolf Hurwitz (1859–1919), published posthumously in 1923, solving the Hurwitz problem for finite-dimensional...