TREX Physique

Experimental Physics

Description: The Experimental Physics Labs (TrEx) are designed to illustrate key concepts in quantum physics, statistical physics, and advanced electromagnetism. Students will have the opportunity, among other things, to be introduced to the Scanning Tunneling Microscope (STM), an iconic instrument in atomic-scale microscopy. They will explore the operating principles of the STM, carry out experimental implementations, and analyze images obtained from crystalline surfaces. They will also study the Zeeman effect, a fundamental phenomenon in atomic physics corresponding to the splitting of spectral lines under the influence of a magnetic field. Through the observation and analysis of spectra, students will investigate the impact of an external magnetic field on atomic energy levels and deepen their understanding of atomic structure. In statistical physics, students will have the opportunity to numerically explore the Ising model—an emblematic model used to describe the collective behavior of spins in a magnetic system. In particular, they will aim to identify the phase transition between paramagnetic and ferromagnetic states. Finally, in electromagnetism, students will conduct an experiment involving information transmission through optical fiber, applying their knowledge of modulation and guided wave propagation.

Learning outcomes: At the end of this module, students will be able to: AA1: Put their theoretical knowledge into perspective through technological applications (e.g., quantum tunneling applied to microscopy) – AA2: Connect fundamental concepts of quantum mechanics to a concrete experimental application – AA3: Develop an initial critical approach to the analysis of scientific data – AA4: Numerically simulate interacting systems and compare analytical and numerical predictions.

Course supervisor:

• Damien Rontani
• Nicolas Marsal

Geode ID: SPM-PHY-004