Quantum defense: 5 projects preparing the capabilities of tomorrow

Why quantum changes the game

Quantum is based on physical properties that allow for the simultaneous processing of a large number of possible configurations and the exploitation of data or phenomena that are too complex to be effectively addressed with classical technologies.

In defense, the main areas of application include :

• computing, to simulate complex phenomena and optimize systems
• sensors, to improve the precision and resilience of weapon systems
• communications, to secure exchanges in a contested environment

These advancements offer concrete prospects to strengthen operational superiority and strategic autonomy.

VULQAIN: simulating combustion through quantum

The VULQAIN project aims to revolutionize combustion simulation, a critical issue for civil and military engines.

Its main contributions:

• Modeling complex phenomena that are difficult to simulate today
• Improving the performance of propulsion systems
• Reducing operational risks

The innovation is based on validating quantum algorithms capable of processing advanced physical models, particularly to simulate complex phenomena with parameters and interactions beyond the capabilities of classical computing.

Quantum-Mag: enhancing navigation without GPS

In environments where GPS signals may be jammed or unavailable, navigation becomes a critical issue.

The Quantum-Mag project is developing a quantum vector magnetometer to:

• Improve the accuracy of autonomous navigation
• Limit the drift of inertial systems
• Reduce the need for recalibration

This type of sensor directly contributes to the resilience of weapon systems in a contested environment.

VALERIAN2: detecting and monitoring with unprecedented accuracy

The VALERIAN2 project develops quantum technologies at low temperature, applied to :

• Detection
• Surveillance of electromagnetic spectra
• Electromagnetic compatibility

Among the innovations:

• Programmable crystals
• Supraconducting antennas

These technologies pave the way for finer detection capabilities, especially in low frequencies.

ULTRACAT: towards more reliable quantum computing

The ULTRACAT project represents a significant step in developing error-tolerant quantum computers.

It aims to:

• Improve the manufacturing processes of quantum components
• Strengthen system stability
• Prepare for the emergence of universal quantum processors

In the long run, these advancements could provide access to unprecedented computing capabilities, with potential applications in various defense domains.

ADEQUADE: quantum sensors for more robust operations

The ADEQUADE project focuses on developing compact and efficient quantum sensors.

Its objectives:

• Enable autonomous navigation in GPS-denied environments
• Strengthen resistance to electromagnetic interference and spoofing
• Improve the precision of systems

Beyond technical performance, the project also aims to structure a supply chain at the European level.

An innovation dynamic serving the armed forces

These projects illustrate the diversity of quantum applications:

• Simulation
• Navigation
• Detection
• Computation

They embody an ambition: translating scientific advances into concrete operational capabilities.

Supported by the Defense Innovation Agency, they contribute to structuring a national ecosystem involving industry, researchers, and defense actors.

Preparing for future capabilities

The development of quantum technologies follows a long-term logic.

But the projects launched today already allow:

• Testing use cases
• Identifying the most promising technologies
• Directing investments

In a context of strategic competition, this ability to anticipate and experiment is a determining factor.

Through these initiatives, the Ministry of Armed Forces and Veterans is gradually preparing for the integration of quantum into its systems, with a constant goal: maintaining operational advantage.