lognormal.jl

LognormalParameters

Parameterises a log-normally random Pauli noise model.

Fields

• params::Dict{Symbol, Any}: Dictionary of the noise parameters described below.
• noise_name::String: Noise parameter name for saving data.

Parameters

• r_1::Float64: Average single-qubit gate entanglement infidelity, the sum of all 3 non-identity Pauli error probabilities.
• r_2::Float64: Average two-qubit gate entanglement infidelity, the sum of all 15 non-identity Pauli error probabilities.
• r_m::Float64: Average measurement error probability.
• r_im::Float64: Average mid-circuit measurement idle entanglement infidelity.
• r_r::Float64: Average mid-circuit reset error probability.
• r_1_std_log::Float64: Approximate standard deviation of the logarithm of the single-qubit gate entanglement infidelity.
• r_2_std_log::Float64: Approximate standard deviation of the logarithm of the two-qubit gate entanglement infidelity.
• r_m_std_log::Float64: Approximate standard deviation of the logarithm of the measurement error probability.
• r_im_std_log::Float64: Approximate standard deviation of the logarithm of the mid-circuit measurement idle entanglement infidelity.
• r_r_std_log::Float64: Approximate standard deviation of the logarithm of the mid-circuit reset error probability.
• seed::UInt64: Random seed used to generate the noise.
• combined::Bool: Whether to treat Pauli X, Y, and Z basis SPAM noise as the same.

get_log_param(r_1::Real, r_2::Real, r_m::Real, std_log::Real; seed::Union{UInt64, Nothing} = nothing, combined::Bool = false)
get_log_param(; r_1::Real, r_2::Real, r_m::Real, r_im::Real = r_m, r_r::Real = r_m, r_1_std_log::Real, r_2_std_log::Real, r_m_std_log::Real, r_im_std_log::Real = r_m_std_log, r_r_std_log::Real = r_m_std_log, seed::Union{UInt64, Nothing} = nothing, combined::Bool = false)

Return a LognormalParameters object that parameterises a log-normally distributed random Pauli noise model.

Optionally specify all standard deviations as std_log.

Arguments

• r_1::Float64: Average single-qubit gate entanglement infidelity, the sum of all 3 non-identity Pauli error probabilities.
• r_2::Float64: Average two-qubit gate entanglement infidelity, the sum of all 15 non-identity Pauli error probabilities.
• r_m::Float64: Average measurement error probability.
• r_im::Float64: Average mid-circuit measurement idle entanglement infidelity.
• r_r::Float64: Average mid-circuit reset error probability.
• r_1_std_log::Float64: Approximate standard deviation of the logarithm of the single-qubit gate entanglement infidelity.
• r_2_std_log::Float64: Approximate standard deviation of the logarithm of the two-qubit gate entanglement infidelity.
• r_m_std_log::Float64: Approximate standard deviation of the logarithm of the measurement error probability.
• r_im_std_log::Float64: Approximate standard deviation of the logarithm of the mid-circuit measurement idle entanglement infidelity.
• r_r_std_log::Float64: Approximate standard deviation of the logarithm of the mid-circuit reset error probability.
• seed::UInt64: Random seed used to generate the noise.
• combined::Bool: Whether to treat Pauli X, Y, and Z basis SPAM noise as the same.

init_gate_probabilities(total_gates::Vector{Gate}, log_param::LognormalParameters)

Returns a dictionary of the Pauli error probabilities for each gate in total_gates generated according to the noise parameters log_param, ordered lexicographically following get_paulis.