PhysicsRecommendedPHY-QM-113
Free Particle & Wave Packets
plane waves, group velocity, spreading of packets
- Difficulty
- 4 / 5
- Importance
- 4 / 5
- Study time
- 6.5–11.5 h
- Kind of work
- Theory
Why it matters
The fundamental theory of microscopic systems and the mathematical machinery (linear algebra + probability) made physical; required for chemistry, materials, electronics, and modern tech.
Where it is used
Semiconductors, lasers, MRI, quantum computing, chemistry, nuclear technology, every modern sensing technology.
How you know you have learned it
Explain/derive key result from memory + solve 2 non-routine checks.
Resources
- Modern Quantum Mechanics — J. J. Sakurai Book
- Introduction to Quantum Mechanics — David Griffiths Book
- Principles of Quantum Mechanics — R. Shankar Book