Proceedings of the International School of Physics "Enrico Fermi.", Volume 49

A₁ angular momentum Araki-Yanase assume assumption atom axiomatic axioms BOHR cas pur classical physics commute components Compton scattering concept considered corpuscule correlation corresponding coupling d'une defined definite denote density matrix described discussion dynamical E. P. WIGNER eigenvalues eigenvectors ensemble être existence experimental fact field finite formalism given Green's function hence hidden variables hidden-variable theories Hilbert space initial interaction interpretation JAUCH l'ensemble l'onde L₁ linear mathematical measuring process mélange ment NEUMANN object observable obtained orthogonal particle peut photons Phys Poisson bracket polarization position possible postulate probabilité problem properties proposition quantal systems quantum mechanics quantum theory question relation result satisfy scattering Schrödinger equation Sect self-adjoint self-adjoint operators spin subspaces subsystem superposition system and apparatus test body theorem tion uncertainty unitary unitary operator valeurs vecteur d'état vector wave function WIGNER YANASE yes-no experiments