MonarQ

Connection Node

Connection node: https://manager.anyonlabs.com

MonarQ is a 24-qubit superconducting quantum computer developed in Montréal by Anyon Systems and located at the École de technologie supérieure. For more information on MonarQ's specifications and performance, see the Technical Specifications section below.

The name MonarQ is inspired by the shape of the qubit circuit on the quantum processor, which resembles a monarch butterfly, a symbol of evolution and migration. The capital 'Q' highlights the quantum nature of the computer and its Québec origin. MonarQ's acquisition was made possible through the support of the Ministère de l'Économie, de l'Innovation et de l'Énergie du Québec (MEIE) and Canada Economic Development (DEC).

Accessing MonarQ¶

To begin the process of accessing MonarQ, complete this form. It must be completed by the principal investigator.
You must have an Alliance account to access MonarQ.
Meet with our team to discuss the specifics of your project, access, and billing details.
Receive access to the MonarQ dashboard and generate your access token.
To get started, see the Getting Started with MonarQ section below.

Contact our quantum team at quantique@calculquebec.ca if you have any questions or would like a more general discussion before requesting access.

Technical Specifications¶

Like quantum processors available today, MonarQ operates in an environment where noise remains a significant factor. Performance metrics, updated with each calibration, are accessible via the Thunderhead portal. Access to this portal requires MonarQ access approval.

Among other things, the following metrics are available:

24-qubit quantum processor
Single-qubit gate fidelity of 99.8% and duration of 32 ns
Two-qubit gate fidelity of 96% and duration of 90 ns
Coherence time of 4-10 μs (depending on the state)
Maximum circuit depth of approximately 350 for single-qubit gates and 115 for two-qubit gates

Quantum Computing Software¶

Several specialized software libraries exist for quantum computing and developing quantum algorithms. These libraries allow for building circuits that are executed on simulators, imitating the performance and results obtained on a quantum computer like MonarQ. They can be used on all Alliance clusters.

PennyLane, a Python command library
Snowflurry, a Julia command library
Qiskit, a Python command library

MonarQ's quantum logic gates are called through the Snowflurry software library, written in Julia. Although MonarQ is natively compatible with Snowflurry, a PennyLane-CalculQuébec plugin, developed by Calcul Québec, allows for executing circuits on MonarQ while benefiting from the functionalities and development environment offered by PennyLane.

Getting Started with MonarQ¶

Prerequisites: Ensure you have MonarQ access and your login credentials (username, API token). For any questions, write to quantique@calculquebec.ca.

Step 1: Connect to Narval
- MonarQ is accessible from Narval, a Calcul Québec cluster. Access to Narval is via the login node narval.alliancecan.ca.
- For help connecting to Narval, consult the SSH page.

Step 2: Create the environment

Create a Python virtual environment (3.11 or later) to use PennyLane and the PennyLane-CalculQuébec plugin. These are already installed on Narval, and you will only need to import the software libraries you wish to use.

module load python/3.11
virtualenv --no-download --clear ~/ENV && source ~/ENV/bin/activate
pip install --no-index --upgrade pip
pip install --no-index --upgrade pennylane-calculquebec
python -c "import pennylane; import pennylane_calculquebec"

Step 3: Configure your MonarQ credentials and define MonarQ as the device
- Open a Python .py file and import the necessary dependencies, namely PennyLane and CalculQuebecClient, as shown in the example below.
- Create a client with your credentials. Your token is available from the Thunderhead portal. The host is https://manager.anyonlabs.com
- Create a PennyLane device with your client. You can also specify the number of qubits (wires) to use and the number of samples (shots).
- For help, consult pennylane_calculquebec.
my_circuit.py
```
import pennylane as qml
from pennylane_calculquebec.API.client import CalculQuebecClient

my_client = CalculQuebecClient(host="https://monarq.calculquebec.ca", user="your username", access_token="your access token", project_id="your project_id")

dev = qml.device("monarq.default", client = my_client, wires = 3)
```

Step 4: Create your circuit

In the same Python file, you can now code your quantum circuit.

my_circuit.py

@qml.set_shots(1000)
@qml.qnode(dev)

def bell_circuit():
    qml.Hadamard(wires=0)
    qml.CNOT(wires=[0, 1]) 
    qml.CNOT(wires=[1, 2])

    return qml.counts()

result = bell_circuit()
print(result)

Step 5: Execute your circuit from the scheduler
- The sbatch command is used to submit a job sbatch.
```
$ sbatch simple_job.sh
Submitted batch job 123456
```
With a Slurm script resembling this:
simple_job.sh
```
#!/bin/bash
#SBATCH --time=00:15:00
#SBATCH --account=def-someuser # Your username
#SBATCH --cpus-per-task=1      # Modify if necessary
#SBATCH --mem-per-cpu=1G      # Modify if necessary
python my_circuit.py 
```
* The circuit's output is written to a file whose name starts with slurm-, followed by the job ID and the .out suffix, for example, slurm-123456.out. * This file contains the circuit's output in a dictionary: {'000': 496, '001': 0, '010': 0, '011': 0, '100': 0, '101': 0, '110': 0, '111': 504}. * For more information on how to submit jobs on Narval, see Running Jobs.

Frequently Asked Questions¶

Frequently Asked Questions (FAQ)

Other Tools¶

Quantum Transpiler

Applications¶

MonarQ is suitable for calculations requiring small numbers of high-fidelity qubits, making it an ideal tool for developing and testing quantum algorithms. Other possible applications include modelling small quantum systems; testing new quantum programming methods and error correction techniques; and, more generally, fundamental research in quantum computing.

Technical Support¶

If you have questions about our quantum services, write to quantique@calculquebec.ca. Sessions on quantum computing and programming with MonarQ are listed here.