Top network posts

• 15 Can one derive Galilean transformations from the harmonic oscillator equations of motion and the relativity principle?
• 14 Do particles with exactly zero energy exist?
• 10 Particle as a representation of the Lorentz group
• 9 Is $\phi^4$ theory in 4d conformally invariant at the classial level?
• 9 Why is there no need in extra knowledge to go from the classical to the quantum desctiption of a system?
• 8 Analytic continuation of the double sum $\sum_{n,m\ge0}x^ny^mt^{nm}$
• 7 Where do negative powers of $f_\pi$ in the hadronic amplitudes come from?
• View more network posts →