Page 1518





C






Canonical






–equations 1488






–commutation relations 150, 222






Cauchy principal part 1471






Center of mass 784, 1484






Central (potential or field)






–stationary states in a 776






–scattering by a 921






–approximation 1410, 1418






Centrifuge potential 781, 859, 864






Characteristic equation of an operator 134






Chemical






–bond 412, 841, 1169, 1191






–potential 1437






Circular quanta 733, 754






Classification (periodic) of the elements 1414






Clebsch-Gordan coefficients 1023, 1035






Closure relation 99, 122






Coherences (of the density matrix) 302






Coherent superposition of states 252, 296






Collisions 903






–with absorption 951






–between identical particles 1373, 1403, 1407, 1448 (e)






–collision parameter 926, 954






Combinations (linear) of atomic orbitals (L.C.A.O.) 1151, 1173






Commutation






–canonical relations 150, 222






–compatibility and commutativity 231






Commutator 168, 171, 174






Compatible observables 231






Complementarity 50






Complete (Complete Set of Commuting Observables: C.S.C.O.) 143, 159, 206 (e), 235






Composition: see addition






Compton wavelength 798, 1216, endpaper






Condensation (Bose) 1399






Conduction bands 1444






Conductivity (electric) of a solid 1443






Conductor 1443






Configuration (electronic) 1414, 1418






Conjugate momentum 213, 1488






Conjugation (hermitian) 116






Conservation






–of probability 237, 238






–of energy 247






–of angular momentum 643, 709, 999






Conservative systems 244, 310






Constants of the motion 247, 313






Contact term 1219, 1228, 1260






Continuous spectrum 138, 218, 263






Continuum of final states 1297, 1344






Convolution product 1464






Correlations between two systems 293, 307, 1084, 1136






Coulomb integral 1175






Coupling






–between two states 407






–of angular momenta 999, 1072






–spin-orbit 1001, 1215, 1223, 1261






Creation operator 489, 498






Cross section






–scattering 905, 913, 934, 952






–absorption 953






–total elastic 906, 952






–total 956






C.S.C.O. 143, 159, 206 (e), 235






Current (probability) 238, 280, 327, 343 (e), 824






–in a scattering experiment 913






Cyclotron frequency 743, 831, endpaper







D






Darwin term 1216, 1260






De Broglie






–relation 18






–wavelength 18, 42






Decay 1344






Decomposition (principle of spectral) 15, 19, 216






Decoupling (fine or hyperfine structure) 1245, 1274






Degeneracy






–of an eigenvalue 132, 217, 259






–systematic (or essential) and accidental 201, 783, 798, 818






–parity 198






–rotation 710, 1056






–exchange 1375, 1387






–removal by a perturbation 1098, 1106






Delta function (Dirac) 1468






–use in quantum mechanics 103, 112, 278






–delta function wells and barriers 86 (e), 87 (e), 88 (e), 1361 (e)






Density






–operator and matrix 295, 437






–of states 381, 1166, 1297, 1346, 1435, 1440






–one- and two- particle density function 1454 (e)






Destruction operator: see annihilation operator






Determinant (Slater) 1390






Deuterium 806, 1086 (e)






Diagonalization






–of an operator 132






–of a 2 x 2 matrix 420






Diamagnetism 828, 870 (e)






Dipole (electric)






–approximation 1307, 1309






–transitions and selection rules 838, 1310






–moment 1062






Dipole (magnetic)






- Hamiltonian 1312






–transitions and selection rules 1066, 1078, 1313, 1315, 1324






–moment 1066






Dipole-dipole interaction






–between two electric moments 1133






–between two magnetic moments 1120, 1219, 1252






Dirac






–notation 108






–equation 1213, 1226






–see delta, Fermi






Distribution






–Bose-Einstein 626






–Fermi-Dirac 1437






Donor atom 809, 1445






Doppler effect 1365 (e)






Duality (wave-particle) 11, 42, 50


Start of Citation[PU]John Wiley & Sons, Inc. (US)[/PU][DP]1977[/DP]End of Citation