## Quantum Mechanics"Strongly recommended" by the American Journal of Physics, this volume serves as a text for advanced undergraduates and graduate students of physics as well as a reference for professionals. Clear in its presentation and scrupulous in its attention to detail, the treatment originally appeared in a two-volume French edition. This convenient single-volume translation begins with formalism and its interpretation, starting with the origins of quantum theory and examinations of matter waves and the Schrödinger equation, one-dimensional quantized systems, the uncertainty relations, and the mathematical framework and physical content of formalism. The second half opens with an exploration of symmetries and invariance, including a consideration of angular momentum, identical particles and the Pauli exclusion principle, invariance and conservation laws, and time reversal. Methods of approximation include those involving stationary perturbations, the equation of motion, variational method, and collision theory. The final chapters review the elements of relativistic quantum mechanics, and each of the two volumes concludes with useful appendixes. |

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amplitude antilinear antiunitary approximation atom basis vectors calculation central potential classical Classical Mechanics coefficients collision commutation relations components condition conjugate consider constant coordinates corresponding Coulomb cross section defined definition degeneracy denote density Dirac Dirac equation distribution dynamical variables eigenfunctions eigenvalue problem eigenvectors electron energy equal expansion expression fermions field finite formula given Hamiltonian Hermitean Hermitean operator Hilbert space integral interaction invariant levels linear operator matrix matrix elements measurement momenta motion norm nucleus observables obtained orthogonal orthonormal oscillator particle particular permutation perturbation phase photon physical plane wave position potential projector properties quantities quantized quantum number quantum system Quantum Theory radial region representation represented respectively right-hand side rotation satisfy scalar product scattering Schrödinger equation Schrödinger representation ſeq solution spectrum spin stationary statistical subspace tensor term theorem transformation unitary vanishes velocity wave function wave packet zero