Ehrenfest's Theorem (position) | Quantum Mechanics @DietterichLabs

Uploaded February 2019 | Updated September 2026, 1 day ago

In this video, I show you how to derive the Ehrenfest theorem equation that relates the expectation values of the position and the momentum.

My Quantum Mechanics Lecture Series:
youtube.com/playlist?list=PLSpklniGdSfSsAFCzO-YWGlJ4TNv8sMdy

Superfluid Helium Resonance Experiment video:
youtu.be/unUNQNmuvUQ

Quantum Field Theory Lecture Series:
youtube.com/playlist?list=PLSpklniGdSfSsk7BSZjONcfhRGKNa2uou

Ehrenfests Theorem (position) | Quantum Mechanics

Energy-Time Uncertainty Principle | Quantum Mechanics

Intro To Degenerate Perturbation Theory | Quantum Mechanics

Relativistic Landau Levels + Dirac Equation: Power Series Method | Relativistic Quantum Mechanics

Spontaneous Symmetry Breaking And The Higgs Mechanism | Quantum Field Theory

$How To Solve The Schrodinger Equation For The Hydrogen Atom | Quantum Mechanics In this video, I show you how to solve the Schrodinger equation for the one electron atom, one of the most famous problems in quantum mechanics. My Quantum Mechanics Lecture Series: https://www.youtube.com/playlist?list=PLSpklniGdSfSsAFCzO-YWGlJ4TNv8sMdy Superfluid Helium Resonance Experiment video: https://youtu.be/unUNQNmuvUQ Quantum Field Theory Lecture Series: https://www.youtube.com/playlist?list=PLSpklniGdSfSsk7BSZjONcfhRGKNa2uou There is a typo in the spherical harmonics normalization constant. In the second fraction under the square root, the 1s are supposed to be ls.$

Time Dependent Perturbation Theory Part 2 Of 2: The Dyson Series | Quantum Mechanics

Hanging A Mass From A Centrifugal Force | Classical Mechanics

A Sick Trick For The Quadratic Gaussian Product Integral (parametric differentiation)

The GR Correction To Newtons Law Of Gravitation | Schwarzschild Metric | General Relativity