New post in Lie-algebra

What is a su(2) level k algebra

February 4th, 2020

In quantum mechanics (QM), can we define a higher-dimensional "spin" angular momentum other than the ordinary 3D one?

June 1st, 2020

Spin commutation relations

May 15th, 2020

Peskin and Schroeder Equation 3.23

November 24th, 2020

Proof that $(1/2,1/2)$ Lorentz group representation is a 4-vector

August 1st, 2022

What does Addition of Angular Momenta tell us about Group Theory?

August 1st, 2022

How to decompose the representation of $\rm SU(5)$?

October 9th, 2021

Why the generators of boosts transform like a vector under rotation?

May 10th, 2020

Spin operators in QM

August 1st, 2022

Spin, orbital angular momentum and total angular momentum

August 1st, 2022

Generators of Poincare Groups

January 15th, 2020

Meaning of Lorentz Generators

April 14th, 2020

How to model a symmetry using Lie Groups?

August 1st, 2022

Matrix diagonalization in SU(2) and SO(3)

August 1st, 2022

Deriving Virasoro algebra question

August 1st, 2022

Lie Groups and group extensions?

November 7th, 2020

Equivalent Rotation using Baker-Campbell-Hausdorff relation

January 5th, 2021

Why is the value of spin $\pm 1/2$?

January 12th, 2022

What is the significance of Lie groups $SO(3)$ and $SU(2)$ to particle physics?

August 13th, 2020

Galilean, SE(3), Poincare groups - Central Extension

March 24th, 2020

Noether theorem with semigroup of symmetry instead of group

June 24th, 2020

Lie bracket for Lie algebra of $SO(n,m)$

May 20th, 2020

How to get result $3 \otimes 3 = 6 \oplus \bar{3}$ for $SU(3)$ irreducible representations?

September 12th, 2020

Confusion about rotations of quantum states: $SO(3)$ versus $SU(2)$

August 1st, 2022

Infinitesimal Lorentz transformation is antisymmetric

May 13th, 2020

The conjugate representation in $\mathfrak{su}(2)$

September 13th, 2020

How does non-Abelian gauge symmetry imply the quantization of the corresponding charges?

August 1st, 2022

Lie group of Schrodinger Wave equation

March 20th, 2020

Commutator of Lorentz boost generators : visual interpretation

September 23rd, 2020

Geometric/Visual Interpretation of Virasoro Algebra

August 1st, 2022