Heisenberg operator formulation of quantum mechanics

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The Heisenberg operator formulation of quantum mechanics is a foundational approach in which observables evolve in time as operators while states remain fixed, providing a mathematically equivalent description to other formulations such as Schrödinger’s and the path integral.

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Predicate Object
instanceOf formulation of quantum mechanics
operator formalism
physical theory
alsoKnownAs Heisenberg picture
matrix mechanics
appliesTo continuous spectra systems
discrete spectra systems
finite-dimensional Hilbert spaces
infinite-dimensional Hilbert spaces
assumes Born rule for probabilities
canonical commutation relations
conceptualAdvantage closely parallels classical Hamiltonian equations via commutators
emphasizes observable quantities
contrastsWith Schrödinger picture
interaction picture
coreIdea dynamics encoded in operator equations of motion
observables are represented by time-dependent operators
state vectors are time-independent
developedBy Max Born
Pascual Jordan
Werner Heisenberg
developedInYear 1925
equivalentTo Schrödinger formulation of quantum mechanics
path integral formulation of quantum mechanics
feature matrix representation of physical quantities
non-commuting observables
operator-valued functions of time
field quantum mechanics
governingEquation Heisenberg equation of motion
commutator form of dynamics
historicalPrecursorTo modern operator algebra approaches
influenced C*-algebraic formulations of quantum mechanics
algebraic quantum field theory
linked to: Wightman axioms

quantum field theory
postulate expectation values computed with fixed state vectors
measurement outcomes are eigenvalues of observables
physical observables correspond to Hermitian operators
relatedConcept Heisenberg picture in quantum field theory
Heisenberg uncertainty principle
commutator
operator algebra
timeEvolutionOperator unitary time-evolution operator
timeEvolutionRule O_H(t) = U†(t) O_S U(t)
usedIn many-body quantum physics
quantum optics
scattering theory
usesMathematicalObject Hilbert space
linear operators
self-adjoint operators
unitary operators

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Referenced by (19)

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Feynman path integral equivalentTo Heisenberg operator formulation of quantum mechanics
Wick’s theorem holdsIn Heisenberg picture of quantum field theory
linked to: Heisenberg operator formulation of quantum mechanics
Gell-Mann–Low theorem appliesTo Heisenberg picture fields
linked to: Heisenberg operator formulation of quantum mechanics
Tomonaga–Schwinger equation usesConcept Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
matrix mechanics timeEvolutionGivenBy Heisenberg equation of motion
linked to: Heisenberg operator formulation of quantum mechanics
matrix mechanics formalismType Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
matrix mechanics mathematicallyEquivalentTo Schrödinger formulation of quantum mechanics
linked to: Heisenberg operator formulation of quantum mechanics
matrix mechanics influenced Heisenberg picture of quantum field theory
linked to: Heisenberg operator formulation of quantum mechanics
matrix mechanics relatedConcept Heisenberg matrix
linked to: Heisenberg operator formulation of quantum mechanics
Weyl algebra usedIn Heisenberg representation
linked to: Heisenberg operator formulation of quantum mechanics
Heisenberg operator formulation of quantum mechanics alsoKnownAs Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
Heisenberg operator formulation of quantum mechanics governingEquation Heisenberg equation of motion
linked to: Heisenberg operator formulation of quantum mechanics
Heisenberg operator formulation of quantum mechanics relatedConcept Heisenberg picture in quantum field theory
linked to: Heisenberg operator formulation of quantum mechanics
Schwinger–Dyson equations generalizes Heisenberg equations of motion
linked to: Heisenberg operator formulation of quantum mechanics
Schrödinger equation relatedTo Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
Schrödinger equation equivalentTo Heisenberg equation of motion
linked to: Heisenberg operator formulation of quantum mechanics
Kubo formula formulatedIn Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
Hamiltonian (time translation generator) appearsIn Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics
The Principles of Quantum Mechanics topic Heisenberg picture
linked to: Heisenberg operator formulation of quantum mechanics