How do we prove or disprove that a particle has no internal structure?
70966
Where is the evidence that the electron is pointlike?
12422
Derivation of $E=pc$ for a massless particle?
112899
Final theory in Physics: a mathematical existence proof?
91613
Can a particle pass through a nodal point where its wave function is zero?
85582
Why aren't all photons virtual particles even in the "vacuum" of empty space?
103460
Normal but not hermitian nor unitary
98220
How do we show that no hidden variable theories can replace QM?
91135
Virtual particles and physical laws
34520
Is $0\,\mathrm{m}$ dimensionless?
156863
Uncertainty Principle for a Totally Localized Particle
115490
Is particle superposition reflected in the particle's gravitational footprint?
36263
Prove that an electron in a hydrogen atom doesn't emit radiation
42414
Why there is no unique "recipe" for quantization of a classical theory?
113344
How do we prove that something is unprovable?
77577
How does one experimentally determine chirality, helicity, spin and angular momentum of a fundamental particle?
48495
Is it possible to prove the independence of the parallel postulate without non-euclidean geometry?
75365
How are string vibration modes related to particle identity?