LayerError

class LayerError(circuit, qubits, error)

The error channel (in Pauli-Lindblad format) of a single layer of instructions.

Parameters

circuit (QuantumCircuit) – A circuit whose noise has been learnt.
qubits (Sequence[int]) – The labels of the qubits in the circuit.
error (PauliLindbladError) – The Pauli Lindblad error channel affecting the circuit.

Raises

ValueError - If circuit, qubits, and error have mismatching number of qubits.

Attributes

The circuit in this LayerError .

Return type

QuantumCircuit

The error channel in this LayerError .

Return type

PauliLindbladError

(DEPRECATED) The Pauli Lindblad generators of the error channel in this LayerError .

Return type

PauliList

The number of qubits in this LayerError .

Return type

int

The qubits in this LayerError .

Return type

list [int]

(DEPRECATED) The Lindblad generator rates of the error channel in this LayerError .

Return type

ndarray [Any, dtype [float64]]

draw_map(embedding, colorscale='Bluered', color_no_data='lightgray', num_edge_segments=16, edge_width=4, height=500, background_color='white', radius=0.25, width=800)

Draw a map view of a this layer error.

Parameters

embedding (Union[Embedding, BackendV2]) – An Embedding object containing the coordinates and coupling map to draw the layer error on, or a backend to generate an Embedding for.
colorscale (str) – The colorscale used to show the rates of this layer error.
color_no_data (str) – The color used for qubits and edges for which no data is available.
num_edge_segments (int) – The number of equal-sized segments that edges are made of.
edge_width (float) – The line width of the edges in pixels.
height (int) – The height of the returned figure.
background_color (str) – The background color.
radius (float) – The radius of the pie charts representing the qubits.
width (int) – The width of the returned figure.

Return type

Figure

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