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Lie-algebra
New post in Lie-algebra
What is a su(2) level k algebra
February 4th, 2020
conformal-field-theory
lie-algebra
In quantum mechanics (QM), can we define a higher-dimensional "spin" angular momentum other than the ordinary 3D one?
June 1st, 2020
lie-algebra
quantum-mechanics
mathematical-physics
angular-momentum
quantum-spin
Spin commutation relations
May 15th, 2020
angular-momentum
quantum-spin
group-representations
lie-algebra
quantum-mechanics
Peskin and Schroeder Equation 3.23
November 24th, 2020
homework-and-exercises
lie-algebra
angular-momentum
special-relativity
Proof that $(1/2,1/2)$ Lorentz group representation is a 4-vector
August 1st, 2022
lie-algebra
representation-theory
group-representations
group-theory
lorentz-symmetry
What does Addition of Angular Momenta tell us about Group Theory?
August 1st, 2022
quantum-mechanics
lie-algebra
quantum-spin
group-theory
representation-theory
How to decompose the representation of $\rm SU(5)$?
October 9th, 2021
beyond-the-standard-model
grand-unification
group-theory
lie-algebra
representation-theory
Why the generators of boosts transform like a vector under rotation?
May 10th, 2020
covariance
representation-theory
lie-algebra
vectors
special-relativity
Spin operators in QM
August 1st, 2022
angular-momentum
representation-theory
lie-algebra
quantum-mechanics
quantum-spin
Spin, orbital angular momentum and total angular momentum
August 1st, 2022
quantum-mechanics
angular-momentum
quantum-spin
lie-algebra
noethers-theorem
Generators of Poincare Groups
January 15th, 2020
poincare-symmetry
lie-algebra
special-relativity
quantum-field-theory
Meaning of Lorentz Generators
April 14th, 2020
lorentz-symmetry
lie-algebra
representation-theory
field-theory
special-relativity
How to model a symmetry using Lie Groups?
August 1st, 2022
symmetry
group-theory
lie-algebra
Matrix diagonalization in SU(2) and SO(3)
August 1st, 2022
lie-algebra
group-theory
group-representations
Deriving Virasoro algebra question
August 1st, 2022
conformal-field-theory
homework-and-exercises
lie-algebra
Lie Groups and group extensions?
November 7th, 2020
lie-algebra
group-theory
standard-model
Equivalent Rotation using Baker-Campbell-Hausdorff relation
January 5th, 2021
commutator
rotation
group-theory
reference-frames
lie-algebra
Why is the value of spin $\pm 1/2$?
January 12th, 2022
quantum-spin
lie-algebra
electrons
angular-momentum
quantum-mechanics
What is the significance of Lie groups $SO(3)$ and $SU(2)$ to particle physics?
August 13th, 2020
quantum-mechanics
symmetry
group-theory
lie-algebra
particle-physics
Galilean, SE(3), Poincare groups - Central Extension
March 24th, 2020
quantum-mechanics
classical-mechanics
symmetry
group-theory
lie-algebra
Noether theorem with semigroup of symmetry instead of group
June 24th, 2020
lagrangian-formalism
symmetry
group-theory
lie-algebra
noethers-theorem
Lie bracket for Lie algebra of $SO(n,m)$
May 20th, 2020
mathematical-physics
angular-momentum
group-theory
lie-algebra
How to get result $3 \otimes 3 = 6 \oplus \bar{3}$ for $SU(3)$ irreducible representations?
September 12th, 2020
group-theory
group-representations
tensor-calculus
lie-algebra
representation-theory
Confusion about rotations of quantum states: $SO(3)$ versus $SU(2)$
August 1st, 2022
quantum-mechanics
group-theory
representation-theory
group-representations
lie-algebra
Infinitesimal Lorentz transformation is antisymmetric
May 13th, 2020
homework-and-exercises
lie-algebra
metric-tensor
group-theory
special-relativity
The conjugate representation in $\mathfrak{su}(2)$
September 13th, 2020
group-theory
representation-theory
lie-algebra
eigenvalue
How does non-Abelian gauge symmetry imply the quantization of the corresponding charges?
August 1st, 2022
lie-algebra
group-representations
group-theory
gauge-theory
discrete
Lie group of Schrodinger Wave equation
March 20th, 2020
lie-algebra
symmetry
mathematical-physics
quantum-mechanics
schroedinger-equation
Commutator of Lorentz boost generators : visual interpretation
September 23rd, 2020
visualization
commutator
lie-algebra
special-relativity
Geometric/Visual Interpretation of Virasoro Algebra
August 1st, 2022
differential-geometry
group-theory
lie-algebra
affine-lie-algebra
string-theory
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