混沌
发表于 2025-3-25 04:59:19
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squander
发表于 2025-3-25 10:37:05
Rotations and Angular Momentum,ted in Chap. 4. Orbital angular momentum operators were introduced in Chap. 7. In Chap. 13 the rotation group was defined. In the present chapter we will first show that group-theoretical concepts afford a synthesis of all results on rotations that have hitherto been obtained. In so doing we will ob
Harrowing
发表于 2025-3-25 13:55:08
,Dirac’s Relativistic Equation, is not entirely satisfactory. The Schrödinger equation is not invariant under the coordinate transformations of the special theory of relativity. This means that it cannot correctly account for relativistic effects which, for inner electrons, are often significant. Furthermore, the Schrödinger equa
不在灌木丛中
发表于 2025-3-25 19:54:00
The Path Integral,ents in terms of a path integral. Next we evaluate that integral in the semiclassical case, that is, when the action associated with the classical trajectory is much larger than Planck’s constant. This will lead to an approximation for the eigenvalues and eigenfunctions of the Hamiltonian of a parti
Conjuction
发表于 2025-3-25 21:46:56
Atomic Orbitals,ontext atomic wave functions are taken as products of one-electron wave functions. But this representation is not really adequate. The half-integral spin and the identity of all electrons bring important constraints on atomic wave functions: they must be completely antisymmetric with respect to perm
maroon
发表于 2025-3-26 00:24:19
Atomic Terms and Multiplets,tate space associated with an electronic configuration. Insofar as the Hamiltonian only involves kinetic and potential energy terms, it commutes with the atom’s orbital and spin angular momentum operators. In simple cases this yields a good approximation for atomic wave functions and energies, the l
蛤肉
发表于 2025-3-26 04:33:28
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covert
发表于 2025-3-26 12:28:43
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BLANK
发表于 2025-3-26 13:41:12
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鸵鸟
发表于 2025-3-26 18:06:51
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