Is there one or more field of physics where $T$-symmetry is broken?
133896
Which interaction violates T symmetry?
137342
Can spacetime be non-orientable?
151523
Quasiclassical QM for centrally symmetric fields
142857
What is the relationship between symmetry and degeneracy in quantum mechanics?
35650
Number theory in Physics
27300
Is there a 1-1 correspondence between symmetry and group theory?
117010
What does it mean for a Hamiltonian or system to be gapped or gapless?
99680
The Dual Nature of Matter
119309
Anomalies in QFT
35509
Noether's Theorem: Lie groups vs. Lie algebras; finite vs. infinitesimal symmetries
61603
Why is the Yang–Mills existence and mass gap problem so fundamental?
94433
Rigorous underpinnings of infinitesimals in physics
44953
Gauge symmetries and elementary particles
92674
Could spontaneous symmetry breaking happen again in our universe?
68634
Learn about tensors for physics
125142
Example where Hamiltonian $H \neq T+V=E$, but $E=T+V$ is conserved
25257
How to see if certain representation of $SU(2)$ is symmetric/antisymmetric/mixed?