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Modern Physics Chapter 1. Quantum Mechanics

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1. Newtonian Paradigm

2. Quantum Mechanics Part 1

3. Quantum Mechanics Part 2

4. Quantum Mechanics Part 3

5. Quantum Mechanics Part 4

6. Quantum Optics Part 1

7. Quantum Optics Part 2



1. Newtonian Paradigm

⑴ Newton’s Laws 1, 2, and 3 describe the relationships between distance, time, force, and energy.

⑵ Newtonian Paradigm : Belief that all phenomena can be interpreted by Newton’s laws.

⑶ By the end of the 19th century, phenomena that couldn’t be explained by Newtonian mechanics appeared.

① Newtonian mechanics cannot be applied at a very small scale (ℓ ≪ 1) → Introduction of quantum mechanics.

② Newtonian mechanics cannot be applied at a very large scale (v ≫ 1) → Introduction of the theory of relativity.



2. Quantum Mechanics Part 1 - Introduction to Wave-Particle Duality

: Describes that particles have both particle-like and wave-like properties.



3. Quantum Mechanics Part 2 - Schrödinger’s Equation

: Derives the wave equation describing particles in terms of energy conservation law.



4. Quantum Mechanics Part 3 - Orbital Theory

: Introduces the concept of orbitals to intuitively represent solutions of Schrödinger’s equation.



5. Quantum Mechanics Part 4 - Band Gap Theory

: Applies Schrödinger’s equation beyond simple atoms and molecules to crystals.



6.Quantum Optics Part 1



7.Quantum Optics Part 2



Input : 2019.03.16 15:26

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