The Principles of Quantum Mechanics

4-vector absorption according algebraic angular momentum applied arbitrary assumption belonging canonical coordinates Chapter classical mechanics classical theory coefficient commuting observables conjugate complex conjugate imaginary constant contact transformation continuous range coordinates and momenta corresponding defined definite denote diagonal discrete displacement dynamical system dynamical variables eigen eigen-y's eigenstates eigenvalues electron emission energy-levels equal equations of motion expression field formula given gives Hamiltonian Heisenberg Heisenberg picture Hence Hermitian operator incident particle integral interaction linear operator m₂ mathematical matrix elements meaning multiplied obtain permutation perturbing energy physical polarization preceding section probability quantum conditions quantum mechanics quantum theory radiation relativistic repre representation result right-hand side satisfy scattering Schrödinger picture Schrödinger's wave equation set of commuting solution spin stationary superposition supplementary conditions symmetrical theorem tion transformation function transition unperturbed system vanish vector velocity wave equation wave function zero