Black Opal interface

Defeat noise and errors
in today’s quantum computers

Through a highly intuitive graphical interface with stunning visualizations, BLACK OPAL helps you build intuition for how noise impacts today’s NISQ-era quantum computers, and deploys professional-grade quantum controls to defeat errors and decoherence. Extract maximum performance and more reliable results from all types of quantum computers.

Get started with Q-CTRL today

Don’t wait to take control of your quantum future with Q-CTRL.
Sign up and try our suite of professional-grade products free, for 15 days.

  • Free 15-day trial
  • Easy to activate
  • Cancel anytime

Take control of your quantum future with BLACK OPAL

Sign up and try our suite of professional-grade products, free for 15 days,
including premium access to BLACK OPAL.


Who should be using Q-CTRL?

If you’re just starting your journey into quantum computing, BLACK OPAL can help you better understand and control quantum hardware and the factors that impact performance and reliability. It’s the perfect starting point for:


Our intuitive, hardware-agnostic software is delivered via an advanced cloud platform, so you’ll always have the latest version and newly released features of Q-CTRL’s powerful quantum control solutions.

  • Free 15-day trial
  • Easy to activate
  • Cancel anytime
* BLACK OPAL is available to try for free for 15 days for a limited time


Learn how powerful quantum control can be.

  • BLACK OPAL modern web application
  • Discover the impact of noise in quantum algorithms and learn how to characterize noise in QCs
  • Build intuitive, interactive visualizations
  • Explore a library of noise-resistant controls for quantum computers and quantum sensors
  • Create numerically optimized quantum logic in a few clicks
  • Download controls in a format best suited to your needs


Ben McCarty, iDefense | Accenture Security
This is beautiful and showing the rotation of the qubit is exactly what I was struggling with ...this is so great it makes me want to cry

Get advanced capability across quantum technologies

Q-CTRL deploys decades of quantum control engineering expertise through our suite of intuitive software products.


Use our Python package to harness the power of Q-CTRL’s tools in your own research, or integrate into hardware.

Open Controls

Contribute to the most comprehensive open-source library of quantum control solutions.


Improve algorithm performance and error-robustness on today's noisy quantum computers and the fault-tolerant architectures of the future.

Media View All

  • Cathy Foley on our quantum future

    Read More
  • 'Focused on speed': Australian startups could miss out on quantum boom

    Read More
  • Australian quantum technology could become a $4 billion industry and create 16,000 jobs...

    Read More