After the electron absorbs energy, it will transition. Please explain the power of the electronic transition from the perspective of the force. That is, the electron only absorbs energy and does not receive any force. Why does it transition? Want to know the microscopic dynamics?
More basic than “force” is “interaction”. All forces are essentially interactions. There are four kinds of interactions: gravitation, electromagnetic, weak interaction and strong interaction. To put it more bluntly, the interaction is described by images, that is, one particle collides with another (gravity is not easy to say, it is still uncertain, but the other three are like this). Therefore, interaction is actually more basic than the concept of “force”. Of course, you can “define” force, nothing more than the change in momentum per unit time. Or, to be more precise, it means that an electron has a completely inelastic collision with a photon, and the force on the electron is the change in the momentum of the electron before and after the collision divided by the time it takes (I have to say that this definition is really It’s too bad.) Micro dynamics. This is already the most basic, how to go microscopically. Finally, I remembered a question Feynman mentioned. He tried to explain to his father that the image of the interaction between electrons and electrons is that electron A emits a virtual photon, and this virtual photon is received by electron B, so electron A transfers energy and momentum to electron B through this virtual photon. . Then Feynman’s father asked, why can electrons emit a photon? Are there many photons in electrons? Also, how do electrons receive photons, and where do they store them? Therefore, physics is a subject of mathematics and science. The above description uses Feynman diagrams to physically explain the scattering between electrons. However, before the Feynman diagrams, there were no such images at all. These images actually correspond to piles of piles. Cumbersome formulas and calculations. If you don’t understand those formulas and just want to speculate on various things from the simple descriptions above, it is very possible to ask a bunch of strange questions.