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- Normal_order abstract "In quantum field theory a product of quantum fields, or equivalently their creation and annihilation operators, is usually said to be normal ordered (also called Wick order) when all creation operators are to the left of all annihilation operators in the product. The process of putting a product into normal order is called normal ordering (also called Wick ordering). The terms antinormal order and antinormal ordering are analogously defined, where the annihilation operators are placed to the left of the creation operators.Normal ordering of a product quantum fields or creation and annihilation operators can also be defined in many other ways. Which definition is most appropriate depends on the expectation values needed for a given calculation. Most of this article uses the most common definition of normal ordering, that given above, which is appropriate when taking expectation values using the vacuum state of the creation and annihilation operators.The process of normal ordering is particularly important for a quantum mechanical Hamiltonian. When quantizing a classical Hamiltonian there is some freedom when choosing the operator order, and these choices lead to differences in the ground state energy.".
- Normal_order wikiPageExternalLink 9601268.
- Normal_order wikiPageID "1193525".
- Normal_order wikiPageLength "17565".
- Normal_order wikiPageOutDegree "31".
- Normal_order wikiPageRevisionID "664100152".
- Normal_order wikiPageWikiLink Anticommutator.
- Normal_order wikiPageWikiLink Bose–Einstein_statistics.
- Normal_order wikiPageWikiLink Boson.
- Normal_order wikiPageWikiLink Bosons.
- Normal_order wikiPageWikiLink Category:Quantum_field_theory.
- Normal_order wikiPageWikiLink Classical_mechanics.
- Normal_order wikiPageWikiLink Commutator.
- Normal_order wikiPageWikiLink Creation_and_annihilation_operators.
- Normal_order wikiPageWikiLink Cyclic_permutation.
- Normal_order wikiPageWikiLink Energy.
- Normal_order wikiPageWikiLink Expectation_value.
- Normal_order wikiPageWikiLink Expected_value.
- Normal_order wikiPageWikiLink Fermion.
- Normal_order wikiPageWikiLink Fermions.
- Normal_order wikiPageWikiLink Fermi–Dirac_statistics.
- Normal_order wikiPageWikiLink Ground_state.
- Normal_order wikiPageWikiLink Hamiltonian_(quantum_mechanics).
- Normal_order wikiPageWikiLink Kronecker_delta.
- Normal_order wikiPageWikiLink Quantum_field_theory.
- Normal_order wikiPageWikiLink Quantum_mechanics.
- Normal_order wikiPageWikiLink Series_(mathematics).
- Normal_order wikiPageWikiLink Thermal_quantum_field_theory.
- Normal_order wikiPageWikiLink Transposition_(mathematics).
- Normal_order wikiPageWikiLink Vacuum_expectation_value.
- Normal_order wikiPageWikiLink Vacuum_state.
- Normal_order wikiPageWikiLink Wicks_theorem.
- Normal_order wikiPageWikiLinkText "''anti''-normal order".
- Normal_order wikiPageWikiLinkText "Normal order".
- Normal_order wikiPageWikiLinkText "normal order".
- Normal_order wikiPageWikiLinkText "normal-order".
- Normal_order wikiPageWikiLinkText "normal-product".
- Normal_order wikiPageWikiLinkText "normally ordered".
- Normal_order hasPhotoCollection Normal_order.
- Normal_order wikiPageUsesTemplate Template:Main.
- Normal_order wikiPageUsesTemplate Template:Other_uses.
- Normal_order subject Category:Quantum_field_theory.
- Normal_order type Mechanic.
- Normal_order type Physic.
- Normal_order comment "In quantum field theory a product of quantum fields, or equivalently their creation and annihilation operators, is usually said to be normal ordered (also called Wick order) when all creation operators are to the left of all annihilation operators in the product. The process of putting a product into normal order is called normal ordering (also called Wick ordering).".
- Normal_order label "Normal order".
- Normal_order sameAs Ordre_normal.
- Normal_order sameAs Ordinamento_normale.
- Normal_order sameAs 표준_순서.
- Normal_order sameAs m.04g5c5.
- Normal_order sameAs Q548536.
- Normal_order sameAs Q548536.
- Normal_order sameAs 正规序.
- Normal_order wasDerivedFrom Normal_order?oldid=664100152.
- Normal_order isPrimaryTopicOf Normal_order.