"Calculated?"

"It's impossible!"

"Casimir forces cannot be calculated by numerical values!"

"This is the consensus of the physics community!"

"Professor Ye, don't talk nonsense!"

"The Casimir effect is a force in a vacuum, and it is impossible to give a value unless it is measured experimentally!"

"It's unrealistic to try to calculate Casimir's strength, there are too many unclear factors involved!"

Ye Feng said that he could calculate the Casimir force, and the physicists on the scene exploded in one fell swoop!

It's like someone has stepped on their tails!

Can Casimir figure it out?

No way!

When pigs fly!

The physicists exploded in an instant!

The mathematicians over there were confused.

What do they say?

What is the Casimir Effect?

Calculated out?

So what's going on?

Why did those people suddenly go berserk?

"Old Li, do you know what's going on?" Ma asked with a sluggish face.

"I don't know, I don't know what I'm talking about. Old Professor Li Shuwen was also confused.

"Professor Draven, do you know?"

"I don't know!"

"What do you say to figure it out?"

The mathematicians were so misty that they didn't understand what they were talking about.

An old brother with a rather irritable temperament said impatiently: "Professor Ye can't calculate anything? Isn't it just some kind of power? Isn't that thing the sum of all natural numbers difficult to calculate? Since Professor Ye said that it can be calculated, it can be calculated!"

"It's just, what are you all about!"

"Are you questioning Professor Ye?"

"I don't believe Professor Ye, what kind of seminar are you here to attend?"

A group of mathematicians didn't understand it, but that didn't stop them from being cynical.

"You know what a!"

Professor Smith said angrily, "Do you know what the Casimir Effect is? Do you know what the Casimir Force is? Ahhhhhh

Ye Feng's words had too much impact on them, and Professor Smith began to explode into foul language.

Dean Ma craned his neck, "We don't know, but we know that Professor Ye won't talk nonsense!"

"Humph!"

Professor Smith didn't answer this, but said coldly: "The Casimir effect is a natural result of quantum field theory, do you know what quantum field theory is?"

Dean Ma snorted, crossed his arms and said, "Do you know what Goldbach guesses?"

Professor Smith sank his face and did not continue the topic, but explained: "In quantum field theory, it is said that there is nothing in a vacuum, and that there is still energy in a vacuum. Quantum field theory quantizes energy in a vacuum, and the entire space is filled with vibrating balls. ”

A professor who does not study quantum mechanics was a little puzzled and asked, "Even if this is the case, what does it have to do with Casimir's inability to calculate?"

This question asked many people's hearts, and everyone was actually very puzzled, why did those physicists blow up after Professor Ye finished saying that he had calculated the Casimir force?

Not only did the mathematicians on the scene not understand, but even some physicists who were not involved in this profession did not understand it.

Professor Smith continued: "To understand this, we must first understand what the Casimir Effect is. The so-called Casimir effect involves placing two very thin neutral metal plates in a vacuum, and the closer these two metal plates are, the greater the gravitational pull will be. ”

And then a mathematician cried out, "Gravity? How do you know it's not gravity?"

These words immediately attracted the attention of all mathematicians!

Dude can!

Do you understand this?

A lot of people gave him a thumbs up!

However, Smith sneered and said disdainfully: "Gravitation? gravity is quadratic, Casimir force is quadratic, you say this is gravitational force?

“……”

The mathematician blushed instantly.

Ma pouted and said, "Can you directly say the main point? After saying so much, why can't you calculate it?"

Smith frowned, thought for a moment, and said, "Let's put it this way, Casimir Force is the energy outside of two metal plates, subtracting the energy inside the interval, and this difference is the value of Casimir Force." ”

"Isn't that easy?"

"Okay? Smith: "This thing, never counts!"

Situ Yuan also nodded and said: "Indeed, because you can't calculate the energy in the vacuum, there are countless harmonic oscillators and countless waves in the vacuum, all of which are infinite. Whether it's in a vacuum, or the harmonic oscillator between two metal plates, it's endless, and how can you calculate it by subtracting one infinity from the other?"

"Infinity minus infinity?"

Hearing this, the mathematicians immediately raised their eyebrows, "What kind of infinity are you talking about?"

They feel a little familiar with the word infinity!

"You give a specific example. Dean Ma said: "How do I feel that this seems to be really calculated!"

"I feel that way too!"

"Really, I've figured it out. ”

"Me too. ”

These mathematicians didn't even understand what the Casimir effect was, but at this time they seemed to understand what Ye Feng meant.

Casimir Force?

Infinity minus infinity?

This Nima is so familiar!

"You can count it too?"

Professor Smith felt insulted, "When the gap between the metal plates is ten nanometers, you can calculate for me what Casimir's force is!" Smith is really angry, he is more angry than anyone else, because he is an authoritative expert in this area!

Among the physicists who study quantum field theory in world physics, Professor Smith can definitely rank in the top five!

This Casimir effect, a phenomenon in quantum field theory!

Ye Feng said that he could calculate it, and he could tolerate it a little, but these mathematicians also said that they could calculate it?

Count in your uncle!

You can count it for Lao Tzu!

Smith directly gave the spacing between the two metal plates, and let everyone count!

What's the matter?

They don't even understand what the Casimir effect is, it's impossible to calculate it just one gap!

But at this moment, Ye Feng, who had not spoken, spoke, "Ten nanometers, is it?"

"Hmm. Smith squinted and said, "Professor Ye wants to do the calculations on the spot?"

"Yes. ”

Ye Feng smiled disappretently, and as he spoke, he turned on the multimedia.

The computer screen was projected on the big screen, and I saw Ye Feng directly use the keyboard to crack out various symbols, including mathematical symbols and physical symbols.

Seriously, if you can use a computer so proficiently on the spot, I'm afraid Ye Feng is alone.

Soon, the big screen was densely packed with formulas and numbers. String after string, many people look at the eyes of the spent.

Seriously, Ye Feng didn't understand the Casimir effect of what the hell this was. However, he knows how to count Casimir Force!

Because of this physical phenomenon, it was a well-known existence in the mathematical world in the previous life!

The conclusion that the sum of all natural numbers is equal to minus one-twelfth was verified by this experiment!

As Ye Feng continued to tap on the keyboard, there were more and more styles on the big screen.

At this time, the physicist frowned, and they were no strangers to the formulas used by Ye Feng. For example, the calculation of the expected value of the vacuum of the electromagnetic field in the metal chamber, the calculation of the standing wave, the calculation of the zero point energy, etc., these are all known physical formulas in physics, and there is nothing to be ignore.

For the calculation of Casimir's force, in fact, someone has done it a long time ago, and finally found that in the last and most critical step, there is no way to continue!

At this time, Ye Feng also calculated the last step: use the standing wave energy in the vacuum and subtract the energy in the metal cavity, and the result is Casimir force!

However, there is an unsolvable problem. There are countless standing waves in a vacuum, how to sum them? Similarly, there are countless standing waves in a metal cavity, which is a misunderstanding in the eyes of physicists!

In their opinion, this is to subtract the infinite with the infinite!

How is this calculated?

However, at this time, the mathematicians on the scene were boiling!

"I see!"

"That's it, I get it!

"I've figured it out!"

"Isn't that the need to sum natural numbers?"

"Negative one-twelve!"

"I see! No wonder Professor Ye will study the sum of all natural numbers! It turns out that it needs to be used here!"

"It's amazing! It's amazing!"

"I never imagined that a problem that has always been recognized as meaningless in the mathematical community would be used here!"

"I just don't know if this result is right!"

"Professor Ye must have calculated!"

"Yes, don't worry!"

Agitated!

Boils!

Half of the roof is being lifted with shouting!

The mathematicians were screaming with excitement as if they had discovered a new continent!

In stark contrast, there are physicists on the other side, and at this time it's their turn to be confused, they haven't understood what is going on, and this obviously hasn't been calculated yet?

These physicists are all looking at each other, scratching their heads.

However, in the next second, these people were stunned!

On the big screen, Ye Feng directly brought in the minus twelve, and then, infinity was eliminated!

Erased!

I rub!

What the hell is this fake, right?

"What's going on?"

"What about infinity?"

"It's—it's gone?"

"No!

"W-How can this be?"

Three seconds later, Ye Feng gave the answer.

All the physicists, looking straight at the last number on the big screen - 101.3 kPa!

Professor Smith was struck by lightning!

Dean Situ Yuan was directly dumbfounded!

All the physicists present who understand quantum field theory are stunned!

"Dean Situ, is this the result correct?"

"Professor Smith?

"Is this accurate?"

"Is it much different from what you measured?"

"Is it right or not?"

"You guys have something to say!"

Those professors who didn't understand were already in a hurry at this time.

I saw Smith say sluggishly: "...... with the results of the measurement"

"How?"

"You say!"

"How much is the difference?"

Smith said, blankly looking, "Exactly the same." ”

Same!

Hiss!

As soon as these words came out, everyone instantly gasped, and the entire auditorium became silent!

Whether it was these physicists or those excited mathematicians, they all swallowed their saliva involuntarily at this moment, and looked up at Ye Feng on the stage with a shocked face!