$SO(3)$, $SU(2)$ and symmetries in quantum mechanics
27558
Idea of Covering Group
13137
Why are Hermitian operators linked to observables?
40965
$t_1$, $t_2$, $t_3$ Hermitian generators of $SU(2)$
154772
The Momentum Operator in QM
81188
$SO(3)$, orbital angular momentum, vector product
121389
Why is quantum mechancis is not content with symmetric operators, but wants self-adjoint operators?
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
101090
Why exactly do sometimes universal covers, and sometimes central extensions feature in the application of a symmetry group to quantum physics?
71626
Superposition of distinct vevs in spontaneous symmetry breaking
55227
Why particle hole symmetry and chiral symmetry are called symmetries?
68211
Characters of Symmetric and Antisymmetric Powers
79994
What exactly means "is a singlet under $SU(N)$"
84677
An Explicit Isomorphism Between the Three Dimensional Orthogonal Lie Algebra and the Special Linear Lie Algebra of Dimension $3$
22842
The Interpretation of $|\psi|^2$ and the No-Clone Theorem
35248
Getting started with Lie Groups
62506
Why $SU(3)$ and not $U(3)$?
51351
Where do symmetries in atomic orbitals come from?