"Bang! bang!"

The students applauded and welcomed Jiang Fan's arrival.

Jiang Fan came to the stage, looked at the students present with a smile, and took the microphone: "I am very happy to come to the School of Science and Technology today to give a lecture for everyone, thank you Mr. Tang for inviting me, and thank the school for preparing for my arrival." ”

"I won't say much here, so let's get started. ”

"What I'm going to talk to you today is about quantum mechanics. ”

Quantum Mechanics is a branch of physics that studies the motion laws of microscopic particles in the material world, mainly studying the structure and properties of atoms, molecules, condensed matter, atomic nuclei and elementary particles, and together with the theory of relativity, it forms the theoretical basis of modern physics.

Quantum mechanics is one of the basic theories of modern physics, which is widely used in quantum chemistry, quantum optics, quantum computing, superconducting magnets, light-emitting diodes, lasers, transistors, and semiconductors such as microprocessors.

Solving particle problems in quantum mechanics often boils down to solving the Schrödinger equation or the stationary Schrödinger equation. The Schrödinger equation is widely used in atomic, nuclear and solid state physics, and the results of solving a series of problems such as atoms, molecules, nuclei and solids are in good agreement with reality.

The Schrödinger equation applies only to non-relativistic particles that are not too velocity, and it also does not contain a description of particle spins.

When relativistic effects are taken into account, the Schrödinger equation is replaced by a relativistic quantum mechanical equation, which naturally includes the spin of the particle.

Schrödinger proposed the fundamental equations of quantum mechanics, established in 1926. It is a non-relativistic wave equation.

It reflects the law that describes the state of microscopic particles as a function of time, and its place in quantum mechanics is equivalent to Newton's law for classical mechanics, which is one of the basic assumptions of quantum mechanics.

Let the wave function describing the state of the microscopic particle be and the Schrödinger equation for the motion of a microscopic particle with mass m in a potential field is .

The wave function can be solved under the single-value, finite, and continuous conditions satisfied by the given initial and boundary conditions and the wave function.

From this, the probability of the distribution of the particles and the average value (expected value) of any possible experiments can be calculated.

When the potential function U does not depend on time t, the particle has a definite energy, and the state of the particle is called the stationary state.

The wave function at steady state can be written as the stationary wave function in the formula, which satisfies the stationary Schrödinger equation, which is mathematically called the eigenequation, where E is the eigenvalue, which is the energy of the steady state, and is also called the eigenfunction belonging to the eigenvalue E.

Jiang Fan said as he held chalk and wrote the equation on the blackboard.

"Young Master Lin, all the people we sent out have been arrested. On the other side, Lin Le'an's mansion, Lin Zeyu said.

"All of them were arrested? Why did they move so fast! Could it be that Jiang Fan had something to do with the above?" Lin Le'an frowned when he heard this.

"Did Ye Jiahao contact you?"

"Young Master Lin, Ye Jiahao hasn't been in contact with me since he went back, and his phone can't get through. Lin Zeyu shook his head and said.

"Damn, Ye Jiahao can't be contacted, presumably his family knows about it, let him not go out, don't contact us. ”

"Young Master Lin, the people we sent out, as soon as they made a fuss, the police dispatched and took them away, Jiang Fan is now in Yanjing, so it seems that he has something to do with the above?" Lin Zeyu said with a frown.

"Well, it's very likely, if Jiang Fan really has something to do with the above, I'm afraid it won't be easy to deal with, on the contrary, if he makes a move against us, it will be much simpler. Lin Le'an nodded.

"Ah this, then Young Master Lin, what should we do?" When Lin Zeyu heard this, he suddenly panicked.

If Jiang Fan really joined forces with the above, even the Lin family would be able to deal with it easily.

"What's the panic, even if Jiang Fan wants to deal with us, he can't help us for a while, I'll contact He Yushu and see what he says. ”

Lin Le'an was a little dissatisfied with Lin Zeyu's realization, scolded him, and then took out his phone and dialed He Yushu.

Now they are grasshoppers on a rope, after all, they have all joined forces to deal with Jiang Fan's company.

If Jiang Fan really dealt with their Lin family, if He Yushu didn't help and watched dryly, then the next one would be the He family.

"Hey. ”

"He Yushu, have you heard about it?"

"I heard about it, but I didn't expect Jiang Fan's side to shoot so quickly. ”

"I suspect that Jiang Fan has an acquaintance on it, so he shot so quickly, and the background of this acquaintance is still very large. Lin Anle analyzed.

"You're right, Jiang Fan is indeed very likely to have acquaintances with a big background, if this is the case, if we want to deal with Jiang Fan, it will not be so simple, this matter has to be considered in the long run. ”

"He Yushu, I also want to think about this matter in the long run, but I think that time waits for no one, I have never known Jiang Fan's personality from Lin Zeyu's side, this person is extremely vindictive, today we took action against the employees of his company, and he made a move, although I don't know what he plans next. ”

"But I think the last few days, it's not going to be quiet. ”

"I'll discuss it with my father, and you should also go to your father to discuss it, I'm afraid that we won't be able to control what happens later. He Yushu advised.

"Well, I'll talk to my father. ”

Hanging up the phone, Lin Anle fell into deep thought, he knew that Jiang Fan was very powerful, and in the path of businessmen, he was even more powerful than any junior in their four major families.

But even if he was great, he was just a businessman.

However, combined with today's development of events, it is impossible for him to doubt the identity of Jiang Fan's businessman, which is very contradictory.

Law of Conservation of Momentum:

If a system is not subjected to an external force or the vector sum of the external forces is zero, then the total momentum of the system remains the same, and this conclusion is called the law of conservation of momentum.

The law of conservation of momentum is one of the most important and universal conservation laws in nature, and it applies to both macroscopic objects and microscopic particles.

It is suitable for both low-speed and high-speed moving objects.

The expression of the law of conservation of momentum in quantum mechanics: m1v1+m2v2=m1v1'+m2v2'...

On the podium, Jiang Fan talked a lot, and he talked a lot in more than ten minutes, but now he stopped and rested for a while, letting these students digest and digest it, and drink saliva himself.

"Dad. ”

He Yushu found his father, He Qisheng.

"The jade book is here, sit down, what's the matter?" He Qisheng put down the book in his hand and smiled.

"Dad, today I joined forces with Lin Anle of the Lin family to deal with the employees of Jiang Fan's company, but not long after it happened, those people were all taken away, so I suspect that Jiang Fan's identity is not simple!" He Yushu said.