## Quantum mechanics: non-relativistic theory |

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### Contents

THE BASIC CONCEPTS OF QUANTUM MECHANICS 1 The uncertainty principle | 1 |

2 The principle of superposition | 6 |

3 Operators | 8 |

Copyright | |

156 other sections not shown

### Common terms and phrases

according angle antisymmetrical approximation atom axes axis calculated classical mechanics coefficients collision commute complex conjugate components condition constant continuous spectrum coordinates corresponding Coulomb field definite values degeneracy denote density dependence derived determined diagonal direction discrete spectrum eigenfunctions eigenvalues elastic scattering electron terms energy levels exponentially factor finite follows formula gives Hamiltonian Hence infinity integral interaction irreducible representations linear magnetic matrix elements mean value molecule momenta motion neutron non-zero normal nuclear nucleons nucleus obtain operator orbital angular momentum particles perturbation theory physical quantity plane possible values potential energy probability PROBLEM properties protons quantum mechanics quantum number quasi-classical region relation respect result rotation scalar scattering amplitude scattering cross-section Schrodinger's equation SOLUTION spherical spin-orbit interaction spinor spinor of rank stationary Substituting suffixes symmetry tensor tion total angular momentum total spin transformation transition variables vector velocity vibrations wave function zero