Using Qiskit with Quantinuum Devices

Qiskit is a popular tool for quantum computing programmers. There are 2 ways to use Qiskit in conjunction with submitting to Quantinuum systems, which are outlined here.

Use Qiskit in conjunction with Pytket and Pytket-Quantinuum

Here we highlight the compatability of qiskit with pytket and pytket-quantinuum for submitting to Quantinuum devices.

Note: Not all capabilities for Quantinuum devices available via pytket are guaranteed to be available in qiskit. Some use cases may require working directly in pytket.*

Similar pytket workflows for submitting to Quantinuum devices exist for other programming interfaces such as cirq or Q#. For more information, see the full list of pytket-extensions.

Running this notebook requires the pytket-qiskit extension. Run pip install pytket-qiskit in your python environment before running this notebook. This will also install Qiskit if it isn’t installed already.

Circuit Preparation

When working with qiskit, quantum circuits are created using Qiskit’s QuantumCircuit object.

from qiskit import QuantumCircuit
from pytket.extensions.qiskit import qiskit_to_tk, tk_to_qiskit
from pytket.circuit.display import render_circuit_jupyter

n_qubits = 2
circuit = QuantumCircuit(n_qubits, n_qubits, name="Bell Test")
circuit.h(0)
circuit.cx(0, 1)
circuit.measure_all()

circuit.draw("mpl")

Convert to pytket

To submit to Quantinuum devices with pytket-quantinuum, the Qiskit QuantumCircuit object needs to be converted to a Pytket Circuit object. This is done via the qiskit_to_tk function. Quantum circuits can be converted between Qiskit and Pytket options via the qiskit_to_tk and tk_to_qiskit functions.

tket_circuit = qiskit_to_tk(circuit)

render_circuit_jupyter(tket_circuit)

Submit to Quantinuum Devices

Now you’re ready to submit to Quantinuum devices! Once you have a Pytket Circuit object, you can use the pytket-quantinuum interface for submitting to Quantinuum devices. An example of how to do this is found in the notebook 02 - How to Submit Quantum Circuits to H-Series Backends.ipynb on the User Portal or Quantinuum_circuit_submissions.ipynb in the examples folder on pytket-quantinuum.

Use the Qiskit Quantinuum Provider from the Qiskit Community

Another option for using Qiskit with Quantinuum systems is to use the Qiskit Quantinuum provider available on the Qiskit community: qiskit-quantinuum-provider

Note that not all capabilities for Quantinuum devices available via pytket are guaranteed to be available in qiskit. Some use cases may require working directly in pytket.

An example of how to submit to Quantinuum systems is provided in the examples folder within the Github repository.