08:04

Deriving the Hamiltonian for the Dirac Field

01:06:13

Quantum Mechanics Exam #1 (HARD) (Schrodinger Equation, delta potential, Infinite Square Well)

19:04

Proving a Useful Spin Sum Identity for the Dirac Field

01:06:56

Free-Particle Solutions of the Dirac Equation (ALL STEPS EXPLAINED)

10:30

Introducing Weyl Spinors and the Weyl Equations in QFT

11:36

Proving that the Dirac Equation implies the Klein-Gordon Equation

17:52

The Dirac Equation in QFT

21:32

Peskin & Schroeder's 2.2c) Solution: Charge of the Complex Scalar (Klein-Gordon) Field

50:19

Peskin & Schroeder's 2.2 b) solution: Diagonalizing the Complex Klein-Gordon Hamiltonian

19:39

The EASIEST Explanation of the Gram-Schmidt Procedure (Griffiths QM 3rd ed. Problem 3.4)

12:09

Explaining the Inner Product in Quantum Mechanics (Using Bras and Kets)

31:44

Hamiltonian for the Complex Scalar Field (Peskin & Schroeder QFT 2.2a)

59:01

Klein-Gordon and Feynman Propagators,Time Ordering (Peskin & Schroeders Eq. 2.54 and 2.56 EXPLAINED)

34:39

Griffiths QM Problem 4.20: Proving Commutators of Angular Momentum

54:57

Causality and Propagators in Free Klein-Gordon QFT

39:07

Griffiths QM 4.15 Solution: Proving Radial Wavefunction and finding expectation values for l=n-1

11:05

The Integral You HAVE TO KNOW to MASTER Quantum Mechanics!

19:28

Can an Electron Be INSIDE The Nucleus? Griffith's Intro to QM Problem 4.14 FULL SOLUTION

23:01

Interpretation of the Klein-Gordon Field and Bose-Einstein Statistics

27:45

Noether's Theorem and the Momentum of the Klein-Gordon Field

17:00

The Vaccum Energy & The Ultraviolet Divergence: Why Quantum Field Theory Fails!

01:25:41

Quantizing the Klein-Gordon Field as Harmonic Oscillators - FULLY EXPLAINED!

33:23

Why we need QFT & Derivation of Klein-Gordon Langriangian Density

01:00:49

Quantum Field Theory Lecture 9 | Covariance of the Dirac Equation (Lorentz Invariance)

23:31

Griffiths QM Problem 4.13 (3rd ed.) Finding Expectation Values for Hydrogen Atom

40:24

Griffiths QM Problem 4.12 (3rd ed.) Radial Equation using Laguerre Polynomials and recursion

20:27

Griffiths QM Problem 4.11 (3rd ed.) Normalizing R20 and R21 | Hydrogen Atom

13:43

Griffiths QM Problem 4.10 (3rd ed.) Finding Radial Wave Functions Using Recursion Formula | H atom

25:16

Griffiths QM Problem 4.9 (3rd ed.) Solving the FINITE Spherical Well for l=0

20:35

Griffiths QM Problem 4.8: Infinite Spherical Well for l=1

55:52

QFT Lecture 8: Introduction to the Lorentz Transformation & Lorentz Invariance

06:07

Proof That ALL Dirac Gamma Matrices Representations Are EQUIVALENT (Pauli's Fundamental Theorem)

11:31

Proof that if a Matrix Commutes With ALL Gamma Matrices, then it is proportional to the unit matrix!

07:35

Proof that ANY 4x4 Matrix Can Be Written in Terms of The 16 Dirac Gamma Matrices!

08:34

Proof that the 16 Dirac Gamma Matrices Are Linearly Independent! + Inverse Gamma matrices & More!

20:18

Griffiths QM (3rd edition) Problem 4.7 Solution: Construct spherical Bessel & Neumann functions l=2

29:22

How to Solve The Infinite Spherical Well (FULLY EXPLAINED)

17:35

How to Solve Integral of Sin(x) To ANY ODD POWER! (VERY HARD)

34:04

Griffiths QM Problem 4.6: Deriving Orthonormality Relation for Legendre Polynomials

29:12

Griffiths QM Problem 4.5 (3rd edition) Finding Spherical Harmonics for l=m and l=3, m=2 & checking

05:45

Griffiths Problem 4.4 (3rd ed) Solution: The OTHER Solution to the Angular Equation

18:49

Griffiths QM Problem 4.3: Constructing Spherical Harmonics for l=m=0 and l=2, m=1

37:30

Solving the Infinite Cubical Well: Griffiths QM Problem 4.2 (3rd edition) Solution FULLY EXPLAINED

01:56:47

MASTER THE DIRAC GAMMA MATRICES! Quantum Field Theory Lecture 7

49:57

Quantum Field Theory Lecture 6: Mastering the Gamma Matrices (Part 1)

47:01

QFT Lecture 5: Finding Antimatter - Spin & Probability Current for Dirac Particle, Dirac Hole Theory

53:44

Quantum Field Theory Lecture 4: Finding Plane Wave Solutions to the Dirac Equation & Normalization

12:25

Griffiths QM Problem 2.3: Prove that Infinite Square Well Can't have E=0 or E less than 0

05:12

Griffiths QM Problem 2.2 Solution: Proving that Energy has to be Greater than Potential

23:15

Griffiths QM 2.1 (3rd ed) Solution: Proving Three Important Theorems

15:46

Griffiths QM 1.9 Derivation of the Probability Current

48:17

Quantum Field Theory Lecture 3: Deriving the Dirac Equation (and gamma matrices!)

59:22

Quantum Field Theory Lecture 2: Klein Paradox (Transmission/Reflection from Potential Barrier)

59:35

Quantum Field Theory Lecture 1: Klein-Gordon Equation for a Single Particle

19:34

Griffiths QM 1.14 Solution (HARD PROBLEM) - Expectation Values for Gaussian wavefunction

27:42

Proof of Ehrenfest Theorem -DETAILED - (Griffiths QM 1.12 Solution)

16:22

Griffiths QM 1.10 Solution: Lifetime of a Particle with Complex Potential (HARD PROBLEM)

19:36

Griffiths QM 1.8 Solution: Expectation Values For Exponential With Absolute Value!

17:32

Griffiths QM 1.6 Solution: Expectation Values For Gaussian Distribution (rho(x)=Ae^(-lambda(x-a)^2)

34:19

Electric Field Due to a Spherical Surface (Integrating, NO GAUSS) EASY WAY Griffiths 2.7 Electro