Path integrals

 

1. Brownian motion

2. Wiener path integrals

3. Examples

4. Substitutions

5. Fokker-Plank vs. Wiener PI

6. Bloch equation and Feynman-Kac formula

7. Semiclassical method

8. Quadratic approximation

9. Fourier decomposition

These hand written notes are based on my working through first Chapters of an excellent book book “Path Integrals in Physics: Volume I Stochastic Processes and Quantum Mechanics” by M. Chaichian and A. Demichev, where path integrals are introduced in a very intuitive way from Stochastic Theory.

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