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20 relations: Clebsch–Gordan coefficients, Creation and annihilation operators, Deaths in April 2013, Determinism, Duane's hypothesis, Dynamical pictures, Ensemble interpretation, Hamilton's optico-mechanical analogy, Heisenberg picture, Index of physics articles (A), Interaction picture, List of École Polytechnique alumni, Messiah (disambiguation), Node (physics), Planck–Einstein relation, Quantum mechanics, Quantum superposition, S-matrix, Schrödinger picture, Total angular momentum quantum number.
Clebsch–Gordan coefficients
In physics, the Clebsch–Gordan (CG) coefficients are numbers that arise in angular momentum coupling in quantum mechanics.
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Creation and annihilation operators
Creation and annihilation operators are mathematical operators that have widespread applications in quantum mechanics, notably in the study of quantum harmonic oscillators and many-particle systems.
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Deaths in April 2013
The following is a list of notable deaths in April 2013.
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Determinism
Determinism is the philosophical theory that all events, including moral choices, are completely determined by previously existing causes.
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Duane's hypothesis
In 1922 American physicist William Duane presented the hypothesis that the scattering of X-Ray photons by a crystal could be best explained by a mechanism of discrete quantized transactions between the crystal and the incident X-Ray photons, where the reaction of the crystal is constrained by a simple quantum rule, and the incident photons behave as free particles.
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Dynamical pictures
In quantum mechanics, dynamical pictures (or representations) are the multiple equivalent ways to mathematically formulate the dynamics of a quantum system.
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Ensemble interpretation
The ensemble interpretation of quantum mechanics considers the quantum state description to apply only to an ensemble of similarly prepared systems, rather than supposing that it exhaustively represents an individual physical system.
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Hamilton's optico-mechanical analogy
Hamilton's optico-mechanical analogy is a concept of classical physics enunciated by William Rowan Hamilton.
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Heisenberg picture
In physics, the Heisenberg picture (also called the Heisenberg representation) is a formulation (largely due to Werner Heisenberg in 1925) of quantum mechanics in which the operators (observables and others) incorporate a dependency on time, but the state vectors are time-independent, an arbitrary fixed basis rigidly underlying the theory.
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Index of physics articles (A)
The index of physics articles is split into multiple pages due to its size.
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Interaction picture
In quantum mechanics, the interaction picture (also known as the Dirac picture after Paul Dirac) is an intermediate representation between the Schrödinger picture and the Heisenberg picture.
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List of École Polytechnique alumni
This is a list of notable people affiliated with the École Polytechnique.
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Messiah (disambiguation)
Messiah is a title given to a saviour or liberator of a group of people in Abrahamic religions.
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Node (physics)
A node is a point along a standing wave where the wave has minimum amplitude.
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Planck–Einstein relation
The Planck–Einstein relationFrench & Taylor (1978), pp.
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Quantum mechanics
Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.
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Quantum superposition
Quantum superposition is a fundamental principle of quantum mechanics.
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S-matrix
In physics, the S-matrix or scattering matrix relates the initial state and the final state of a physical system undergoing a scattering process.
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Schrödinger picture
In physics, the Schrödinger picture (also called the Schrödinger representation) is a formulation of quantum mechanics in which the state vectors evolve in time, but the operators (observables and others) are constant with respect to time.
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Total angular momentum quantum number
In quantum mechanics, the total angular momentum quantum number parameterises the total angular momentum of a given particle, by combining its orbital angular momentum and its intrinsic angular momentum (i.e., its spin).
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