CLASSIQUE is a pioneering research initiative at Aalborg University, Denmark, that aims to revolutionize communication systems for the quantum age. As quantum technologies rapidly advance, CLASSIQUE focuses on a critical challenge: how to evolve classical communication networks to support both traditional data and the unique requirements of quantum information systems. CLASSIQUE will address a suite of fresh research challenges defined by the intersection of digital applications that have real-time requirements and quantum resources that are time-constrained due to the decoherence and volatility.

CLASSIQUE’s vision is to develop new theories, models, and algorithms that enable reliable and timely communication in distributed systems processing both classical and quantum data.

The center brings together experts in communication engineering, physics, mathematics, and computer science and the research is organized in four thrusts:

• Communication Systems: Designing protocols and network architectures that integrate classical and quantum communication, with a focus on satellite-supported systems.

• Physics-based Models: Creating accurate representations of quantum components to inform communication system design.

• Data Representation and Compression: Developing efficient methods to process and transmit classical and quantum data under strict timing constraints.

• Reliability and Trustworthiness: Ensuring the dependability of hybrid classical-quantum systems through advanced techniques for verification and reliability guarantees.

CLASSIQUE’s research has far-reaching implications for various sectors, including geosensing, finance, aerospace, and defense. Moreover, the center will train a new generation of researchers equipped with the skills to navigate the complex landscape of hybrid classical-quantum networks.