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---
title: synth_clifford_bm
description: API reference for qiskit.synthesis.synth_clifford_bm
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.synthesis.synth_clifford_bm
---
# qiskit.synthesis.synth\_clifford\_bm
<Function id="qiskit.synthesis.synth_clifford_bm" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.23/qiskit/synthesis/clifford/clifford_decompose_bm.py" signature="synth_clifford_bm(clifford)">
Optimal CX-cost decomposition of a Clifford operator on 2-qubits or 3-qubits into a QuantumCircuit based on Bravyi-Maslov method.
**Parameters**
**clifford** ([*Clifford*](qiskit.quantum_info.Clifford "qiskit.quantum_info.Clifford")) a clifford operator.
**Returns**
a circuit implementation of the Clifford.
**Return type**
[QuantumCircuit](qiskit.circuit.QuantumCircuit "qiskit.circuit.QuantumCircuit")
**Raises**
**QiskitError** if clifford is on more than 3 qubits.
## Reference:
1. S. Bravyi, D. Maslov, *Hadamard-free circuits expose the structure of the Clifford group*, [arXiv:2003.09412 \[quant-ph\]](https://arxiv.org/abs/2003.09412)
</Function>