K3. Angular Momentum

K3. Angular Momentum

We derive the orbital angular momentum commutator rules of quantum mechanics. We then establish a connection with the Pauli spin matrices and arrive at the concept of intrinsic spin. Notes downloadable at www.mjtruiz.com

Angular momentum operator algebra

Angular momentum operator algebra

The structure of quantum mechanical angular momentum is treated by working out the algebraic structure of total angular momentum and the z-component. The total angular momentum operator expressed in terms of raising and lowering operators then can be used to work out the ladder of eigenvalues. (This lecture is part of a series for a course based on Griffiths' Introduction to Quantum Mechanics. The Full playlist is at http://www.youtube.com/playlist?list=PL65jGfVh1ilueHVVsuCxNXoxrLI3OZAPI.)

Commutator - 3D Angular Momentum

Commutator - 3D Angular Momentum

Derivation of the commutator for the 3D quantum mechanical angular momentum operators Lx and Ly - [Lx, Ly].

Topics In Quantum Mechanics Video #18: Momentum And Position Commutator

Topics In Quantum Mechanics Video #18: Momentum And Position Commutator

Hundreds of FREE Problem Solving Videos And FREE REPORTS from www.digital-university.org

Commutator - Linear Momentum and Position

Commutator - Linear Momentum and Position

Derivation of the Commutator of the 1-D linear position and linear momentum operators.

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