This release is a pre-release and may not be stable for production use.
The qBraid-SDK is a platform-agnostic quantum runtime framework designed for both quantum software and hardware providers.
This Python-based tool streamlines the full lifecycle management of quantum jobs—from defining program specifications to job submission and through to the post-processing and visualization of results. Unlike existing runtime frameworks that focus their automation and abstractions on quantum components, qBraid adds an extra layer of abstractions that considers the ultimate IR needed to encode the quantum program and securely submit it to a remote API. Notably, the qBraid-SDK does not adhere to a fixed circuit-building library, or quantum program representation. Instead, it empowers providers to dynamically register any desired input program type as the target based on their specific needs. This flexibility is extended by the framework’s modular pipeline, which facilitates any number of additional program validation, transpilation, and compilation steps.
By addressing the full scope of client-side software requirements necessary for secure submission and management of quantum jobs, the qBraid-SDK vastly reduces the overhead and redundancy typically associated with the development of internal pipelines and cross-platform integrations in quantum computing.
Resources
Installation & Setup
For the best experience, install the qBraid-SDK environment on lab.qbraid.com. Login (or create an account) and follow the steps to install an environment. Using the SDK on qBraid Lab means direct, pre-configured access to QPUs from IonQ, AQT, QuEra, Rigetti, Pasqal, and IQM, as well as on-demand simulators from qBraid, AWS, IonQ, QuEra, Quantinuum, Rigetti, and Pasqal. See qBraid Quantum Jobs and pricing for more.
Local install
The qBraid-SDK, and all of its dependencies, can be installed using pip:
pip install qbraid
Warning:
qbraidversions <0.11 are not compatible with qBraid API V2. See migration guide.To ensure compatibility with the new platform, use
qbraid>=0.11.0.
You can also install from source by cloning this repository and running a pip install command in the root directory of the repository:
git clone https://github.com/qBraid/qBraid.git
cd qBraid
pip install .
Note: The qBraid-SDK requires Python 3.10 or greater.
To use qBraid Runtime locally, you must also install the necessary extras and configure your account credentials according to the device(s) that you are targeting. Follow the linked, provider-specific, instructions for the QbraidProvider, BraketProvider, QiskitRuntimeProvider, IonQProvider, OQCProvider, AQTProvider, AzureQuantumProvider, OpenQuantumProvider, OriginProvider, PasqalProvider, QPerfectProvider, QuantinuumProvider, QudoraProvider, and RigettiProvider as applicable.
Quickstart
Check version
You can view the version of the qBraid-SDK you have installed and get detailed information about the installation within Python using the following commands:
In [1]: import qbraid
In [2]: qbraid.__version__
In [3]: qbraid.about()
Transpiler
Graph-based approach to quantum program type conversions.
Below, QPROGRAM_REGISTRY maps shorthand identifiers for supported quantum programs, each corresponding to a type in the typed QPROGRAM Union. For example, 'qiskit' maps to qiskit.QuantumCircuit in QPROGRAM. Notably, 'qasm2' and 'qasm3' both represent raw OpenQASM strings. This arrangement simplifies targeting and transpiling between different quantum programming frameworks.
>>> from qbraid import QPROGRAM_REGISTRY
>>> QPROGRAM_REGISTRY
{'cirq': cirq.circuits.circuit.Circuit,
'qiskit': qiskit.circuit.quantumcircuit.QuantumCircuit,
'pennylane': pennylane.tape.tape.QuantumTape,
'pyquil': pyquil.quil.Program,
'pytket': pytket._tket.circuit.Circuit,
'braket': braket.circuits.circuit.Circuit,
'braket_ahs': braket.ahs.analog_hamiltonian_simulation.AnalogHamiltonianSimulation,
'openqasm3': openqasm3.ast.Program,
'pyqir': pyqir.Module,
'cpp_pyqubo': cpp_pyqubo.Model,
'qasm2': str,
'qasm3': str,
'qasm2_kirin': str,
'ionq': qbraid.programs.typer.IonQDict,
'qubo': qbraid.programs.typer.QuboCoefficientsDict,
'bloqade': bloqade.analog.builder.assign.BatchAssign,
'cudaq': cudaq.kernel.kernel_builder.PyKernel,
'qibo': qibo.models.circuit.Circuit,
'stim': stim._stim_sse2.Circuit,
'pulser': pulser.sequence.sequence.Sequence,
'pyqpanda3': pyqpanda3.core.QProg,
'autoqasm': autoqasm.program.program.Program,
'qrisp': qrisp.circuit.quantum_circuit.QuantumCircuit,
'mimiqcircuits': mimiqcircuits.circuit.Circuit,
'aqt_connector': aqt_connector.models.circuits.QuantumCircuit,
'qat': qat.core.wrappers.circuit.Circuit}
Pass any registered quantum program along with a target package from
QPROGRAM_REGISTRY to "transpile" your circuit to a new program type:
>>> from qbraid import random_circuit, transpile
>>> qiskit_circuit = random_circuit("qiskit")
>>> cirq_circuit = transpile(qiskit_circuit, "cirq")
>>> print(qiskit_circuit)
┌────────────┐
q_0: ──■──┤ Rx(3.0353) ├
┌─┴─┐└───┬────┬───┘
q_1: ┤ H ├────┤ √X ├────
└───┘ └────┘
>>> print(cirq_circuit)
0: ───@───Rx(0.966π)───
│
1: ───H───X^0.5────────
Behind the scenes, the qBraid-SDK uses rustworkx to create a directional graph that maps all possible conversions between supported program types:
from qbraid import ConversionGraph
# Loads native conversions from QPROGRAM_REGISTRY
graph = ConversionGraph()
graph.plot(legend=True)
Above is every program type and conversion the SDK ships. graph.plot() draws the subset
available in your environment, since a conversion is only registered once both of its
program types are installed.
You can use the native conversions supported by qBraid, or define your own. For example:
from unittest.mock import Mock
from qbraid import Conversion, register_program_type
# replace with any program type
register_program_type(Mock, alias="mock")
# replace with your custom conversion function
example_qasm3_to_mock_func = lambda x: x
conversion = Conversion("qasm3", "mock", example_qasm3_to_mock_func)
graph.add_conversion(conversion)
# using a seed is helpful to ensure reproducibility
graph.plot(seed=20, k=3, legend=True)
QbraidProvider
Run experiments using on-demand simulators provided by qBraid. Retrieve a list of available devices:
from qbraid import QbraidProvider
provider = QbraidProvider()
devices = provider.get_devices()
Or, instantiate a known device by ID and submit quantum jobs from any supported program type:
device = provider.get_device("qbraid:qbraid:sim:qir-sv")
jobs = device.run([qiskit_circuit, braket_circuit, cirq_circuit, qasm3_str], shots=1000)
results = [job.result() for job in jobs]
batch_counts = [result.data.get_counts() for result in results]
print(batch_counts[0])
# {'00': 483, '01': 14, '10': 486, '11': 17}
And visualize the results:
from qbraid.visualization import plot_distribution, plot_histogram
plot_distribution(batch_counts)
plot_histogram(batch_counts)
Get Involved
- Interested in contributing code, or making a PR? See CONTRIBUTING.md
- For feature requests and bug reports: Submit an issue
- For discussions, and specific questions about the qBraid-SDK join our discord community
- For questions that are more suited for a forum, post to QCSE with the
qbraidtag.
License
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Total release size: 1.5 MB
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