Quantum information

What is it?

Quantum information is a field of research that explores how the principles of quantum mechanics, which govern the behavior of particles on a microscopic scale, can be applied to the transmission, processing and storage of information.

The classical elementary unit of information (or bit) is a physical system that can exist in two well-defined macroscopic states. Its quantum equivalent (or qubit) is a physical system that can exist in two different quantum states, or in a superposition of these two states. This enables faster, more efficient calculations for certain problems, opening up unprecedented prospects in fields such as cryptography, complex system modeling and materials simulation.

History

The history of quantum information research in Sherbrooke goes back several decades, with the creation of a scientific community dedicated to exploring the fundamental concepts of quantum physics and their applications in information processing. From the outset, Sherbrooke has been a fertile ground for innovation, thanks to interdisciplinary collaborations between physicists, mathematicians and engineers.

Over the years, IQ has played a central role in the development of this field, notably through major advances in quantum information theory, quantum error correction and cutting-edge technologies such as quantum computers and processors.

Currently at IQ

By combining a wide range of expertise, this axis focuses on the study of quantum systems, such as superconducting and spin qubits and resonators, with the aim of pushing back the current limits of information processing. The interdisciplinary approach enables the development of innovative solutions for quantum computing and communications, while opening up perspectives on as-yet unseen applications. Today, IQ is internationally recognized as a key player in quantum information research, with collaborative projects and results that are influencing quantum science on a global scale.

This line of research brings together an internationally renowned faculty, each bringing a unique expertise that is shaping advances in the manipulation, transmission and storage of information on the quantum scale.