Particles

Particle Types

The following are subtypes of QEDbase.AbstractParticleType(@extref).

For all these types the corresponding interface is implemented, including QEDbase.base_state(@extref) and QEDbase.propagator(@extref).

QEDcore.FermionLike — Type

Abstract base types for particle species that act like fermions in the sense of particle statistics.

particle interface

Every concrete subtype of FermionLike has is_fermion(::FermionLike) = true.

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QEDcore.BosonLike — Type

Abstract base types for particle species that act like bosons in the sense of particle statistics.

particle interface

Every concrete subtype of BosonLike has is_boson(::BosonLike) = true.

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QEDcore.MajoranaFermion — Type

Abstract base type for majorana-fermions, i.e. fermions which are their own anti-particles.

particle interface

All subtypes of MajoranaFermion have

is_fermion(::MajoranaFermion) = true
is_particle(::MajoranaFermion) = true
is_anti_particle(::MajoranaFermion) = true

source

QEDcore.MajoranaBoson — Type

Abstract base type for majorana-bosons, i.e. bosons which are their own anti-particles.

particle interface

All subtypes of MajoranaBoson have

is_boson(::MajoranaBoson) = true
is_particle(::MajoranaBoson) = true
is_anti_particle(::MajoranaBoson) = true

source

QEDcore.Fermion — Type

Abstract base type for fermions as distinct from AntiFermions.

particle interface

All subtypes of Fermion have

is_fermion(::Fermion) = true
is_particle(::Fermion) = true
is_anti_particle(::Fermion) = false

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QEDcore.Boson — Type

Abstract base type for bosons as distinct from its anti-particle counterpart AntiBoson.

particle interface

All subtypes of Boson have

is_boson(::Boson) = true
is_particle(::Boson) = true
is_anti_particle(::Boson) = false

source

QEDcore.AntiFermion — Type

Abstract base type for anti-fermions as distinct from its particle counterpart Fermion.

particle interface

All subtypes of AntiFermion have

is_fermion(::AntiFermion) = true
is_particle(::AntiFermion) = false
is_anti_particle(::AntiFermion) = true

source

QEDcore.AntiBoson — Type

Abstract base type for anti-bosons as distinct from its particle counterpart Boson.

particle interface

All subtypes of AntiBoson have

is_boson(::AntiBoson) = true
is_particle(::AntiBoson) = false
is_anti_particle(::AntiBoson) = true

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QEDcore.Electron — Type

Concrete type for electrons as a particle species. Mostly used for dispatch.

julia> using QEDcore

julia> Electron()
electron

particle interface

Besides being a subtype of Fermion, objects of type Electron have

mass(::Type{T}, ::Electron) = one(T)
charge(::Type{T}, ::Electron) = -one(T)

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QEDcore.Positron — Type

Concrete type for positrons as a particle species. Mostly used for dispatch.

julia> using QEDcore

julia> Positron()
positron

particle interface

Besides being a subtype of AntiFermion, objects of type Positron have

mass(::Type{T}, ::Positron) = one(T)
charge(::Type{T}, ::Positron) = one(T)

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QEDcore.Photon — Type

Concrete type for the photons as a particle species. Mostly used for dispatch.

julia> using QEDcore

julia> Photon()
photon

particle interface

Besides being a subtype of MajoranaBoson, Photon has

mass(::Type{T}, ::Photon) = zero(T)
charge(::Type{T}, ::Photon) = zero(T)

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