![]() The two isotopes of rubidium, Rb85 and Rb87, with different nuclear magnetic moments, make the experimental data even richer. The experimental determination of these atomic energy states can be compared to the theoretical predictions of the Briet-Rabi equation. This model describes the coupling of a single electronic orbital and spin angular momentum with the nuclear spin angular momentum and of the coupled system to the external field. Its energy states, in an externally applied uniform magnetic field, can be understood using a semi-classical model. The rubidium atom is an ideal model system for students to study. ![]() TeachSpin’s Optical Pumping apparatus explores the atomic physics of both isotopes of natural rubidium. Optical Pumping is a widely used and powerful technique for exploring atomic energy states, atomic transitions, and atomic collisions using electromagnetism in the form of light, radio frequency, and uniform constant magnetic fields. ![]()
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