The gravity of relativity, and the gravity of multidimensional field theory.
He only needed to make a few changes to the gravity of the multidimensional field theory, and found that the two equations were so similar that he could not even make any difference.
Then, after some simple transformations, the two equations can be connected with an equal sign.
"Is this a coincidence in physics?"
Lin Xiao couldn't help but admire in his heart.
This is equivalent to the fact that the theory of relativity and quantum mechanics, which were once almost completely incompatible with the discussion of gravity, can now be connected with an equal sign.
Of course, although they are connected, the physical meaning contained in them still needs to be discussed.
Although now Lin Xiaoda can directly publish the equation he accidentally discovered, and he also believes that this is just a "Physical Review Letters" and can easily set off a wave of articles in the physics community.
However, with Lin Xiao's character, he would not allow himself to publish it without even understanding its meaning.
Looking at this equation and the formulas on the left and right, Lin Xiao pinched his chin. How to find out the actual physical meaning from mathematical symbols is a relatively common thing for an excellent physicist. After all, they are originally
They have to use mathematics to discuss physics. If they cannot understand the physical meaning, it will obviously bring certain obstacles to their research.
However, for Lin Xiao, seeing the meaning behind it is not the most critical thing. The most critical thing is whether he can proceed with more deductions after seeing the meaning.
And at this moment, that's exactly what he was doing.
Looking at the formula in front of me, although both sides of the equation are harmonious, no matter what, as a person who has done in-depth research on physics, after being pleasantly surprised by this formula that the theory of relativity is actually related to the graviton,
It's just a kind of awkwardness. Of course, it's an awkwardness out of habit, not the kind of awkwardness that feels wrong.
Just like that, after carefully observing this equation, Lin Xiao raised his eyebrows slightly and had some ideas.
General relativity includes the classic Newton's law of universal gravitation within the framework of special relativity.
In the general theory of relativity, gravity is described as a geometric property of space-time, that is, curvature, and this curvature of space-time is directly related to the matter in space-time, and its connection method is Einstein's field equation.
"So, Einstein's description of gravity in the theory of relativity is as presented by this Einstein field equation."
[Gμv=Rμv-1/2gμvR……]
Lin Xiao wrote down this Einstein field equation on paper. The equation is very simple, but the various meanings contained in it are not simple at all.
"This is based on the definition of gravity under general relativity, and according to multi-dimensional field theory, various dimensions are superimposed, and gravity... gravity..."
Lin Xiao groped his chin, but his eyes became brighter and brighter.
He suddenly felt like he had completely simplified this problem.
"Just like the current description of gravity under the general theory of relativity in the physics community, an extremely heavy matter presses a pit in the large network of space and time, and then other matter around this extremely heavy matter will begin to circle around this
The pit surrounds it.”
Just like what is shown in the videos describing gravity on the Internet, there is an elastic cloth, and then a big ball representing a star is put on it, and the big ball presses out a pit, and then it is dropped from the edge.
A few balls representing planets were inserted, and then these balls representing planets began to orbit the big ball representing stars.
"But obviously, in our world, space and time are three-dimensional, and stars are also three-dimensional, so it is impossible for three-dimensional stars to press out a large net on three-dimensional space and time. But if gravity affects our three-dimensional space and time from a four-dimensional perspective,
What effect does it have?”
"And in fact, this view has always existed in the academic community."
That is to say, gravity should belong to the four-dimensional space, not the three-dimensional space where they are located, so they cannot observe gravity in the three-dimensional universe.
"But how can gravity interfere with our three-dimensional space from a four-dimensional perspective? Is there something in the middle that connects these two things?"
At this moment, Lin Xiao already felt that he was very close to the key point.
"Contact...contact..."
Lin Xiao's heart suddenly moved and he had a bold idea.
"Perhaps, gravitons are like this?"
He started his deduction again.
This time, he integrated the particle that is very similar to the graviton predicted in the standard model of multidimensional field theory.
Integration is the inverse operation of derivation.
Derivative is the differentiation of the original function, and integration is to find the original function.
At this time, what Lin Xiao has to do is to find the original function of the graviton in this three-dimensional space.
This is a slightly complicated indefinite integral problem. Of course, in Lin Xiao's hands, this complexity can be turned into simplicity.
And with the completion of this step, he saw an astonishing result.
The graviton after integration, let's call it the graviton in four-dimensional space, is actually related to his previous equation.
Lin Xiao's eyes showed surprise, and then he felt relieved.
"So, the gravity in three-dimensional space is actually the shadow of the four-dimensional graviton in four-dimensional space..."
"And the graviton-like thing I predicted in the standard model of multidimensional field theory is its shadow."
The tone of his statement meant that he was certain of the result.
Just like the shadow of a person, it is a projection of a three-dimensional object onto a two-dimensional one, while the projection of a four-dimensional object is naturally projected onto a three-dimensional one.
"It's just that because it involves high-dimensional particles, it makes our observation difficult."
"Then, this is a good solution."
A smile appeared on Lin Xiao's face.
Once, he used low dimensions to peek at high dimensions, but now, he has even found the connection between high dimensions and low dimensions.
At the same time, it is also conceivable that which other particles also belong to this kind of projection?
Lin Xiao can easily think of one, and that is neutrinos.
After all, neutrinos are also difficult to observe, elusive and difficult to detect.
"Okay, let's not talk more about these for now. Let's sort out the papers first."
It just so happened that it once again brought an important result to his multidimensional field theory.
Although his multidimensional field theory has been around for several years, there are not many people who have studied it, but there are not many major results like this.
Therefore, it is up to him, the founder, to drop another depth bomb to make this water active again.
…
"Physical Review Letters" is famous for its fast review speed, especially the speed of rejection.
Of course, when the person who submits the paper is a famous physicist in the world, they receive it very quickly.
Therefore, when Lin Xiao's paper was submitted, the editorial department quickly completed the review. First, they were amazed by the content, and then published the paper, which amazed them all, in their next publication.
In one issue of the journal.
"Physical Review Letters" is mainly famous in the physics community for its short length and important content. In short, most of the papers are relatively short and concise, so many physicists subscribe to it.
When Lin Xiao's paper was seen by physicists, the entire theoretical physics community exploded.
Connect relativity theory with gravitons? Also follow the standard model of multidimensional field theory?
Gravity is the product of four-dimensional space in three-dimensional space? The gravitons in their universe are the projection of gravitons in four-dimensional space?
These words that sound very science fiction are not science fiction at all in Lin Xiao's paper, and those science fiction words basically come from their physics community.
Therefore, Lin Xiao's paper made all physicists feel like they were crazy.
But from a mathematical point of view, no one questions its correctness.
After all, Lin Xiao's derivation is a rational and orderly inference, rather than based on additional theories for perfection. Just like the description of gravitons in the Standard Model, the physicists who originally determined the Standard Model were originally intended to
It was introduced to improve the model.
As a result, heated discussions started in the physics community, with many famous physicists, especially some Nobel physicists.
"I have to admit that every paper written by Professor Lin is so amazing. As a physicist who studies quantum mechanics, I support Professor Lin's results."
"In any case, Professor Lin's paper still opened up a possibility for us. I think we are now one step closer to the final answer to gravity. As for what the final answer is, it naturally depends on us.
In the collider, I saw the fleeting gravitational interaction force.』
"Oh my God, the two people upstairs are actually Nobel Prize winners. It really makes me realize something! As a Ph.D. student in physics, I can only tremble. Of course, no matter what, Professor Lin will always be me.
idol
"Professor Lin is still very powerful. He has made such significant achievements in multi-dimensional field theory. It feels like Einstein's theory of relativity. Einstein almost single-handedly developed the theory of relativity to the same level as quantum mechanics."
level, and now Professor Lin is doing such a thing, right?”
"That's true, even though I can't even understand one of Professor Lin's papers."
Among the many comments, there were many who maintained high evaluations of Lin Xiao's paper. However, in these speeches, a refutation of relativistic physics appeared, and this relativistic physicist was also a well-known physicist.
Although he did not win the Nobel Prize as a scientist, he did not win any less of other heavyweight awards in physics.
"Hey, no matter how fanciful you say, I can't imagine the existence of gravitons. Although Professor Lin has linked the existence of gravitons to the theory of relativity, from another perspective, wouldn't this still make
Is the theory of relativity completely broken down?"
Of course, other physicists also responded to this well-known physicist's speech: "Oh! Old Jike, you can't think like that. Now we just draw an equal sign, but in the future we will not be able to find a perfect
How to make relativity and gravitons more harmonious? After all, they are now connected. Just like when you chase your wife, you also take your time. You need to connect first, and then slowly get closer.
』
"My wife and I met in a bar. After we got drunk together, we were done with it. There was no gradual process of getting closer like you mentioned."
"..."
In this way, more and more physicists discussed this matter. In the end, physicists who studied quantum mechanics believed Lin Xiao's results. However, for those physicists who studied relativity, they
Although they approved Lin Xiao's paper, they still said that they were still unwilling to believe the result without experimental results to prove it.
As for the experimental results they want to see, it is naturally to directly or indirectly observe the existence of gravitons in experiments.
And this is also the most critical point in this matter.