# qiskit.transpiler.CouplingMap.reduce¶

CouplingMap.reduce(mapping)[source]

Returns a reduced coupling map that corresponds to the subgraph of qubits selected in the mapping.

Parameters

mapping (list) -- A mapping of reduced qubits to device qubits.

Returns

A reduced coupling_map for the selected qubits.

Return type

CouplingMap

Raises

CouplingError -- Reduced coupling map must be connected.