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Fock state

In quantum mechanics, a Fock state or number state is a quantum state that is an element of a Fock space with a well-defined number of particles (or quanta). These states are named after the Soviet physicist Vladimir Fock. Fock states play an important role in the second quantization formulation of quantum mechanics.

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Overview

Definition

Example using two particles

Bosonic Fock state

Fermionic Fock state

Fock states are not energy eigenstates in general

Vacuum fluctuations

Multi-mode Fock states

Source of single photon state

Non-classical behaviour

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Map overview Semantic statistics

Fock state

Nodes69
Edges68
Triples49
Avg. degree1.97
Density0.028986
Components1

How this topic connects Entity context

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Fock state

Top relations

related to Action on some specific Fock states · 8
Fock state → Fock, For, Jordan, No, Pauli, That, We, Wigner
related to External links · 8
Fock state → Archived, Fock, MIT, PDF, Produce, QuantumLab, Vladan Vuletic, Wayback Machine
related to Antisymmetric behaviour of Fermionic Fock state · 7
Fock state → Antisymmetric, Exchange, Fermionic, Fock, Here, If, Using
related to Boson creation and annihilation operators · 7
Fock state → Annihilation, Creation, Fock, For, Hermitian, The, We
related to Non-classical behaviour · 5
Fock state → Dirac, Fock, Sudarshan P-representation, The, The Glauber
related to Symmetric behaviour of bosonic Fock states · 5
Fock state → Fock, Here, If, The, Using
related to Fermion creation and annihilation operators · 4
Fock state → Fermionic Fock, Hermitian, The, To
related to Example using two particles · 3
Fock state → Fock, For, So
is a · 2
Fock state → eigenstate of the number operator with eigenvalue n k i, eigenvector of the total number operator whose eigenvalue is the total occupation number of all the modes n

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Important terminology

fock state displaystyle mathbf states operator rangle number operators creation annihilation particle particles dagger left right space fermionic fermions single

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Fock stateis aeigenstate of the number operator with eigenvalue n k i0.90text
Fock stateis aeigenvector of the total number operator whose eigenvalue is the total occupation number of all the modes n0.90text
Fock staterelated to Action on some specific Fock statesFor0.60section
Fock staterelated to Action on some specific Fock statesThat0.60section
Fock staterelated to Action on some specific Fock statesWe0.60section
Fock staterelated to Action on some specific Fock statesFock0.60section
Fock staterelated to Action on some specific Fock statesNo0.60section
Fock staterelated to Action on some specific Fock statesPauli0.60section
Fock staterelated to Action on some specific Fock statesJordan0.60section
Fock staterelated to Action on some specific Fock statesWigner0.60section
Fock staterelated to Antisymmetric behaviour of Fermionic Fock stateAntisymmetric0.60section
Fock staterelated to Antisymmetric behaviour of Fermionic Fock stateFermionic0.60section

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