Linear Algebra MOC

Linear algebra studies spaces, vectors, linear maps, bases, and eigenvectors. It is the mathematical layer behind Susskind’s quantum mechanics notes: quantum states are vectors, observables are operators, and measurement uses eigenvalues.

Core local notes

  • Vector space — the base structure: add vectors and scale them without leaving the space.
  • Hilbert space — physics-facing quantum state space with inner products and normalisation.
  • Observable — Hermitian operators as measurable quantities.

Useful route for physics

  1. Understand linear combinations and bases in Vector space.
  2. Treat a quantum state as a vector in Hilbert space, not as a tiny object moving through ordinary space.
  3. Read operators as transformations of vectors; eigenvectors are states with sharp values for an Observable.
  4. Use noncommutation to understand the Uncertainty principle.

Bridges

Source trail: Susskind The Theoretical Minimum index; reference book: Quantum Mechanics: The Theoretical Minimum by Leonard Susskind and Art Friedman.