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---
title: qv_circuits (v0.26)
description: API reference for qiskit.ignis.verification.qv_circuits in qiskit v0.26
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.ignis.verification.qv_circuits
---
<span id="qiskit-ignis-verification-qv-circuits" />
# qiskit.ignis.verification.qv\_circuits
<Function id="qiskit.ignis.verification.qv_circuits" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-ignis/tree/stable/0.6/qiskit/ignis/verification/quantum_volume/circuits.py" signature="qv_circuits(qubit_lists, ntrials=1, qr=None, cr=None, seed=None)">
Return a list of square quantum volume circuits (depth=width)
The qubit\_lists is specified as a list of qubit lists. For each set of qubits, circuits the depth as the number of qubits in the list are generated
**Parameters**
* **qubit\_lists** (*list*) list of list of qubits to apply qv circuits to. Assume the list is ordered in increasing number of qubits
* **ntrials** (*int*) number of random iterations
* **qr** ([*QuantumRegister*](qiskit.circuit.QuantumRegister "qiskit.circuit.QuantumRegister")) quantum register to act on (if None one is created)
* **cr** ([*ClassicalRegister*](qiskit.circuit.ClassicalRegister "qiskit.circuit.ClassicalRegister")) classical register to measure to (if None one is created)
* **seed** (*int*) An optional RNG seed to use for the generated circuit
**Returns**
**A tuple of the type (`circuits`, `circuits_nomeas`) wheere:**
`circuits` is a list of lists of circuits for the qv sequences (separate list for each trial) and \`\` circuitss\_nomeas\`\` is the same circuits but with no measurements for the ideal simulation
**Return type**
tuple
</Function>