航天飞机
发表于 2025-3-21 17:07:33
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演绎
发表于 2025-3-21 23:19:24
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GIDDY
发表于 2025-3-22 00:24:50
Treasures Hidden in Commutators,e Hamiltonian . and the ladder operators . and ., under the operation of commutation. We now show that this method can be extended to the problem of angular momentum, the addition of angular momenta, the hydrogen atom, and a free particle.
characteristic
发表于 2025-3-22 07:46:06
Dynamics: The Nonrelativistic Theory, classical to quantum electrodynamics being then straightforward. Next, we focus on the quantization of a free electromagnetic field wherein plays the abstract solution for harmonic oscillator based on the introduction of non-Hermitian ladder operators a decisive role.
Debility
发表于 2025-3-22 12:46:28
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Pert敏捷
发表于 2025-3-22 14:12:30
Approximate Methods in Quantum Mechanics,with it. Therefore, we need to opt for appropriate approximations when facing the remaining vast majority of quantum-mechanical problems. In this chapter, we will introduce two basic approaches—the . and . method. Naturally, many other exist (for example the semi-classical approximations). However,
敌手
发表于 2025-3-22 18:33:42
The Hydrogen Atom and Structure of Its Spectral Lines,resulting from the electrostatic interaction between an electron and the nucleus, a fine structure arising from the spin-orbit interaction, and a hyperfine structure stemming from the spin-spin interaction. These structures are not specific solely for the hydrogen-like atoms though, we encounter the
疏远天际
发表于 2025-3-22 22:37:05
Treasures Hidden in Commutators,onstrated that one can determine very efficiently the spectrum of the harmonic oscillator owing to the closure of the set of three operators,namely the Hamiltonian . and the ladder operators . and ., under the operation of commutation. We now show that this method can be extended to the problem of a
Counteract
发表于 2025-3-23 03:38:50
The Helium Atom,cient number of integrals of motion, one can solve its energy spectrum exactly. Unfortunately, one cannot determine exactly the spectrum of helium nor of any of the heavier atoms. Nevertheless, we know from Chap. . that by means of the variational method we may approximate the solution to any desira
Tailor
发表于 2025-3-23 07:19:48
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