Introduction to VTT QX

Published

May 19, 2025

QX is a cloud platform that allows users access to VTT’s Quantum computers. Users can run quantum circuits, manage their jobs, see previous results and view specific device metrics through the dashboard. It also provides utilities for user, project and access management. We can currently access the service at qx.vtt.fi.

Projects

Each user can be a member of one or more projects within VTT QX. Projects provide access to devices. The list of available devices per project is shown in the project details view.

If a device is not part of any project that the user is member of, it will be shown as unavailable in the dashboard (indicated by a closed lock icon).

Devices available for a Project

Project Administrator

Each project has an admin. The following actions are supported: - Close the project - Change the project description - Remove members from the project

Project Lifecycle

A project has a lifetime. When the project reaches the end of its lifetime, its status changes from “Active” to “Closed”. The project can be extended by contacting the support. When a project is in the state “Closed”, job results can still be retrieved, but no new jobs can be submitted.

Project Quota

Projects are associated with a project quota, which can be viewed in the project details view. When a project runs out of quota, jobs will be rejecteed with the following message:

Insufficient project quota

Please reach out to the support if the project quota needs to be modified.

There are 2 types of project quota:

  1. QPU Seconds per month
  2. Booking Minutes per month