## Quantum mechanicsRapid advances in quantum optics, atomic physics, particle physics and other areas have been driven by fantastic progress in instrumentation (especially lasers) and computing technology as well as by the ever-increasing emphasis on symmetry and information concepts--requiring that all physicists receive a thorough grounding in quantum mechanics. This book provides a carefully structured and complete exposition of quantum mechanics and illustrates the common threads linking many different phenomena and subfields of physics. |

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amplitude angular momentum applied approximation arbitrary assumed boundary conditions calculate Chapter classical coefficients commutation relations components constant coordinate corresponding Coulomb cross section defined definite denotes derived determined differential equation Dirac discrete eigen eigenfunctions eigenstates eigenvalue problem eigenvalues eigenvectors electron energy eigenvalues energy levels equation of motion Exercise expansion expectation value expression field finite formula free particle frequency Hamiltonian harmonic oscillator Heisenberg picture Hence Hermitian operator identical identical particles incident initial integral interaction invariant linear harmonic oscillator linearly independent magnetic matrix elements measurement normalized notation nucleus obtain one-particle orthogonal parity perturbation theory phase photons plane wave polarization positive potential probability properties quantum mechanics quantum numbers radiation relativistic representation represented result rotation satisfy scattering Schrodinger equation Show simple solutions spherical spin spinors Substituting symmetry theorem transition unitary operator unperturbed vanishes vector operator vector space wave function wave packet zero