Type used to notify that the input is made of FockState indistiguishable photons.

CoherentState(displacement_parameter::Complex)

Type used to notify that the input is made of a coherent state.

Fields:
    - displacement_parameter::Complex
    - displacement::Vector{Complex}
    - covariance_matrix::Matrix{Complex}

Model of distinguishable photons FockState.

Supertype to any concrete input type of Gaussian state.

GaussianInput{T<:Gaussian}
GaussianInput{T}(r::ModeOccupation, squeezing_parameters::Vector, source_transmission::Union{Vector, Nothing})

Input state made off Gaussian states at the entrance of the interferometer. Models of partial distinguishability for Gausian states being of different nature than those for Fock states, we distinct input of Bosonic Fock states with indistinguishable Gaussian states.

GramMatrix{T}(n::Int) where {T<:InputType}
GramMatrix{T}(n::Int, distinguishability_param::Real) where {T<:InputType}
GramMatrix{T}(n::Int, S::Matrix) where {T<:InputType}

Matrix of partial distinguishability. Will automatically generate the proper matrix related to the provided InputType.

Fields:
    - n::Int: photons number
    - S::Matrix: Gram matrix
    - rank::Union{Int, Nothing}
    - distinguishability_param::Union{Real, Nothing}
    - generating_vectors::OrthonormalBasis

Input{T<:InputType}
Input{T}(r::ModeOccupation) where {T<:InputType}
Input{T}(r::ModeOccupation, G::GramMatrix) where {T<:InputType}

Input state at the entrance of the interferometer.

Fields:
    - r::ModeOccupation
    - n::Int
    - m::Int: modes numbers
    - G::GramMatrix
    - distinguishability_param::Union{Real, Nothing}

Supertype to any concrete input type such as Bosonic, PartDist, Distinguishable and Undef.

One parameter model of partial distinguishability interpolating between indistinguishable and fully distinguishable photons FockState.

OrthonormalBasis(vector_matrix::Union{Matrix, Nothing})

Basis of vectors $v_1,...,v_n$ stored as columns in a $n$-by-$r$ matrix possibly empty.

Fields:
    vectors_matrix::Union{Matrix,Nothing}

Type used to notify that the input is made of FockState partially distinguishable photons.

Model of partially distinguishable photons FockState described by a randomly generated GramMatrix.

SingleModeSqueezedVacuum(squeezing_parameter::Real)

Type used to notify that the input is made of single mode squeezed state.

Fields:
    - squeezing_parameter::Real
    - displacement::Vector{Complex}
    - covariance_matrix::Matrix{Complex}

ThermalState(mean_photon_number::Real)

Type used to notify that the input is made of a thermal state.

Fields:
    mean_photon_number::Real
    displacement::Vector{Complex}
    covariance_matrix::Matrix{Complex}

Model of photons FockState with undefined GramMatrix.

Type used to express that we don't know what partial distinguishability experimental samples have.

Model of partially distinguishable photons FockState described by a provided GramMatrix.

VacuumState()

Type used to notify that the input is made of the vacuum state.

Fields:
    displacement::Vector{Complex}
    covariance_matrix::Matrix{Complex}

get_spectrum(state::Gaussian, k::Int)

Get the spectrum in the Fock basis of a state up to k photons.