Métrologie Quantique

Quantum Sensing

Description: This course provides an in-depth introduction to quantum sensing, a field that exploits fundamental quantum properties—such as coherence, entanglement, and quantum measurement—to achieve sensitivities beyond classical limits. The course develops the theoretical foundations of quantum metrology, including estimation theory, quantum Fisher information, and fundamental precision bounds, while explicitly addressing the role of noise, decoherence, and quantum control in realistic sensing scenarios. Emphasis is placed on quantitative modeling and on understanding the trade-offs between sensitivity, coherence time, and robustness to environmental noise. The course then surveys the main experimental platforms used in quantum sensing, including atomic clocks and cold-atom interferometers, photonic sensors employing squeezed states of light, and solid-state quantum sensors such as nitrogen-vacancy centers in diamond and superconducting devices. Dedicated problem-solving sessions complement the lectures, allowing students to apply theoretical concepts to analytical and numerical case studies inspired by current research. By the end of the course, students will have acquired the conceptual and practical tools required to analyze, model, and compare modern quantum sensors and to understand their applications in fundamental physics, engineering, and emerging quantum technologies.

Learning outcomes: AA1: Knowledge of the main quantum resources for the implementation of hardware solutions – AA2: Numerical and experimental implementation of quantum communication protocols – AA3: Mastery of the different architectures of quantum computers and their limitations – AA4: Mastery of existing techniques in quantum metrology

Evaluated skills:

• Physical Engineering Design
• Physical Modeling
• Data Processing
• Systems Analysis

Course supervisor: Damien Rontani

Geode ID: SPM-PHY-xxx