Why Dirac monopole is a topological defect in a $U(1)$ gauge theory?
120490
Does magnetic monopole violate $U(1)$ gauge symmetry?
147524
Why is the "canonical momentum" for the Dirac equation not defined in terms of the "gauge covariant derivative"?
123430
Can a topological manifold be non-connected and each component with different dimension?
56708
What do we mean with magnetic monopole and dipole?
66919
When/why does the principle of least action plus boundary conditions not uniquely specify a path?
89843
Is the center of the fundamental group of the double torus trivial?
101318
Why does a monopole not radiate energy in electodynamics?
102495
Proof that the Casimir invariant of a representation commutes with everything
48969
The magnetic field of a magnetic monopole
134962
What causes the Pauli exclusion principle (and why does spin 1/2 = fermion)?
69389
Gauge fields and strings: Loop equations
90221
Regarding the Weyl spinor and its transformation properties
94543
Topological/Geometrical justification for $\text{CFT}_2$ being special
68234
Is $[0,1) \cup \{2\}$ a manifold with boundary? My issue is the $2$.
93835
Why do those terms vanish if the metric is Hermitian?
65442
Conformal transformation/ Weyl scaling are they two different things? Confused!
119330
Dirac delta function and volume charge density