0x101 Quantum Mechanics

Summary of Modern Quantum Mechanics

Fundamental Concepts

The Stern-Gerlach experiment

SG experiment measures the z-component of the magnetic momentum $\mu$ of random oriented silver atoms, which are expected to distribute continuously between $[ -|\mu|, |\mu| ]$, but are actually realized in the two quantized spots.

Furthermore, concating multiple SG apparatus show that determining x,z component simutaneously is impossible. Measuring one will destroy info of the other.


[1] Sakurai, Jun John, and Eugene D. Commins. “Modern quantum mechanics, revised edition.” (1995): 93-95.