Hamiltonian (time translation generator)

E166696

The Hamiltonian (time translation generator) is the operator in relativistic quantum theory that generates time evolution of physical states as part of the Poincaré symmetry algebra.

All labels observed (3)

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf generator in Poincaré algebra ⓘ
generator of time translations ⓘ
observable in quantum mechanics ⓘ
operator in quantum theory ⓘ
actsOn Hilbert space of physical states ⓘ
appearsIn Heisenberg picture ⓘ
Schrödinger picture ⓘ
belongsTo Poincaré symmetry algebra ⓘ
linked to: Poincaré group
commutesWith spatial momentum operators in time-independent systems ⓘ
correspondsTo time translation subgroup of Poincaré group ⓘ
linked to: Poincaré group
determines spectrum of energy levels ⓘ
eigenvaluesRepresent possible energy values ⓘ
generates unitary time evolution operator ⓘ
generatesTransformation |ψ(t)⟩ → e^{-iHt}|ψ(0)⟩ (ℏ=1) ⓘ
hasDimension energy ⓘ
hasRole generates time evolution of physical states ⓘ
implements time translations on field operators in Heisenberg picture ⓘ
isAssociatedWith Noether charge for time translation symmetry ⓘ
isBoundedBelow true for stable relativistic theories ⓘ
isCentralTo problem of time in quantum gravity ⓘ
isComponentOf four-momentum operator ⓘ
isConjugateTo time coordinate in canonical formalism ⓘ
isConservedWhen Lagrangian is time-translation invariant ⓘ
isConstraintIn generally covariant theories like canonical quantum gravity ⓘ
isDefinedOn domain dense in Hilbert space ⓘ
isDenotedBy H ⓘ
isFrameDependent true in relativistic theories ⓘ
isGeneratorOf one-parameter unitary group of time translations ⓘ
isHermitian true ⓘ
isLinkedTo stability and causality of relativistic theory ⓘ
isModifiedBy interaction terms in interacting quantum field theories ⓘ
isObtainedFrom Legendre transform of Lagrangian in canonical quantization ⓘ
isPartOf ten generators of Poincaré symmetry ⓘ
isRelatedBy H = P^0 in covariant notation ⓘ
isRelatedTo energy of the system ⓘ
isSelfAdjoint true ⓘ
isSubjectOf spectral theorem for self-adjoint operators ⓘ
isUsedIn relativistic quantum field theory ⓘ
relativistic quantum mechanics ⓘ
isUsedToDefine thermal (Gibbs) state via e^{-βH} ⓘ
time-ordered correlation functions ⓘ
obeys [H,J^i]=0 in Poincaré algebra ⓘ
[H,K^i]=iP^i in Poincaré algebra ⓘ
[H,P^i]=0 for isolated relativistic systems ⓘ
reducesTo classical Hamiltonian in ℏ → 0 limit ⓘ
satisfies H|0⟩ = 0 or E_0|0⟩ for vacuum state (up to constant) ⓘ
Schrödinger equation ⓘ

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Poincaré group → hasGenerator → Hamiltonian (time translation generator) ⓘ
Hamilton–Jacobi equation → usesConcept → Hamiltonian function ⓘ
linked to: Hamiltonian (time translation generator)
Hamiltonian Monte Carlo → basedOn → Hamiltonian function ⓘ
linked to: Hamiltonian (time translation generator)
Hamiltonian mechanics → usesConcept → Hamiltonian function ⓘ
linked to: Hamiltonian (time translation generator)
four-momentum operator → hasComponent → Hamiltonian operator ⓘ
linked to: Hamiltonian (time translation generator)