When I am reborn, I just want to be a top student

Now that a material formula has been simulated through artificial intelligence technology, the next step is very simple.

Originally, the staff of this quantum laboratory were somewhat dissatisfied with Lu Yang who joined in temporarily.

However, after spending a few days together, the original dissatisfaction disappeared without a trace.

Lu Yang is a genius professor after all. His learning ability and other abilities are at the top level.

Therefore, I quickly became the core in the laboratory and was responsible for more things.

After all, with greater ability comes greater responsibility.

And just when Lu Yang was in charge of testing the new formula data.

Wang Donglai was not idle either.

in fact.

When he saw the recipe, he had an idea in his mind.

This recipe is unlikely to succeed.

Long before, Wang Donglai had acquired a magical skill.

Goldfinger.

alchemy.

These two skills allow one to quickly research a suitable material, change material properties, and analyze material formulas.

One is to analyze biological properties and generate excellent medicines.

Just like the Evergreen Liquid, it was discovered by Wang Donglai through alchemy.

However, the energy consumption of these two skills is too high.

Therefore, for such a long time, Wang Donglai rarely used these two skills.

There is another reason, which is that the current environment is not suitable.

Once the construction of the space station is completed, Wang Donglai will be able to set up a laboratory on the space station.

By then, all kinds of breakthrough materials and products can be boldly brought out.

Everyone knows that the space environment is different, so it is not an exaggeration to have these breakthroughs.

If only so many technologies could be brought out on the ground.

Wang Donglai was also worried that it would cause some unnecessary trouble.

You know, Galaxy Technology has been developing rapidly in recent years.

I don’t know how many people’s attention it attracted.

More than twenty commercial spies were caught.

Later, when Wang Donglai was doing some cutting-edge technology research, he rarely kept it secret.

If some people want to come in, let them come in.

Anyway, the key points of breakthroughs in some core technologies lie in Wang Donglai.

There is no need to worry about leaks or anything like that.

And this time.

Although quantum communication technology is important, it is not enough for Wang Donglai to use the golden finger skill.

But even so.

With the computing power of his brain at this time, it is not a problem.

It can be said.

His brain at this point was not much different from a computer.

No, it's even better than computers in some aspects.

For example, in terms of storage capacity, the storage capacity of the human brain is difficult to estimate accurately. Unlike computers, which use binary to store information, it is achieved through the connection of neurons and synapses. Some bold scientists have made assumptions and calculations and deduced that the storage capacity of the human brain is approximately between 2.5PB and 1000PB.

In contrast, computer storage capacity is relatively easy to measure. The largest hard drive currently on the market can store 20TB of information.

It follows that, from a storage capacity perspective, the human computer is equivalent to 100 to 50000 of the largest computers.

In terms of computing power, the computing power of the human brain is also difficult to accurately estimate because it does not process at a fixed frequency and instructions like a computer, but processes information through the activities of neurons and synapses.

Scientists have made various estimates of the computing power of the human brain, suggesting that it may process tens of billions of nerve impulses per second.

In contrast, computer processing power is easier to quantify, usually using Hertz and floating-point operations to express its information processing speed.

Currently, the world's fastest supercomputer can achieve a computing speed of 10^18 times per second.

If compared by this standard, the computing power of the human brain is equivalent to 0.01 to 1000 top supercomputers.

In terms of energy consumption, the human brain is relatively stable, relying mainly on oxygen and glucose in the blood for energy.

Although the brain accounts for only 2% of the body's weight, it consumes 20% of the body's energy.

On average, the human brain consumes 20 watts of energy.

Computer energy consumption varies depending on usage. Typically, an ordinary desktop computer consumes about 200 watts of energy when running, while a supercomputer can consume millions of watts.

Therefore, from the perspective of energy consumption, the human brain is equivalent to 0.1 to 0.01 ordinary computers or 0.0001 to 0.00001 supercomputers.

Through these comparisons, we can clearly see the difference between the human brain and the computer.

The human brain has the ability to process fuzzy information, can adapt to uncertainty, flexibility and creativity, and can make judgments and decisions based on intuition and experience.

A computer is a precise system that deals primarily with problems of determinism, regularity, and repetition.

From the perspective of structure and function, the human brain is a nonlinear system that can produce unexpected results and is full of creativity and diversity.

A computer, on the other hand, is a linear system that can usually only perform calculations and processes according to the expected results.

With the magical skills rewarded by the system, Wang Donglai's brain was not only strengthened on its original basis, but also had advantages similar to those of a computer.

and so.

It didn't take long at all for Wang Donglai to optimize the formula in his mind.

After the optimization is completed, the optimized plan is written out immediately.

It is naturally impossible for Wang Donglai to come up with his optimized plan at this time.

We have to wait until the test data comes out before we can release it.

And here we are.

The initial challenges of quantum communication technology have been solved.

Next, we can conduct real research on quantum communication technology.

The advantages of quantum communication are many.

For example, the quantum no-cloning theorem and the principle of quantum superposition. Any eavesdropping will cause the quantum state to change and be discovered immediately, ensuring the absolute security of secret key distribution.

Traditional encryption algorithms can be easily cracked by quantum computers, but there is no need to worry about this with quantum key distribution at the physical level.

For example, quantum communication can still maintain stable transmission in a complex electromagnetic environment, and the required signal-to-noise ratio is significantly lower than that of traditional communication. In addition, it is insensitive to electromagnetic interference and has extremely strong military value.

As for ultra-long distance transmission, it is an insignificant advantage.

It can be said that if there is a breakthrough in quantum communication technology.

Not only will there be major breakthroughs in the aerospace field, but the Internet industry will also undergo a huge change.

Such an important technology was researched by Wang Donglai himself.

It is impossible for the higher-ups not to take this seriously.

Therefore, the fact that Pan Hong knew about this and Lu Yang took the initiative to join the research team means that this matter is not simple.

However, the sentence is still the same.

Wang Donglai didn't care.

In the blink of an eye, two days passed.

In the past two days, Lu Yang has been working overtime to test the data of the new material. However, when the results came out, not only Lu Yang, but also other staff members were a little disappointed.

It’s not that this material is bad.

The test data is much better than other materials, but it is still far from being ready for use.

With the test results, Lu Yang found Wang Donglai and began to report.

After listening to Lu Yang's report, he took the test results and looked at them.

His face looked calm. After all, he had been mentally prepared and was not surprised.

"Well, although this material is still far from meeting our requirements, it is already very good to be able to achieve such a breakthrough through intelligent technology."

"These past few days, I happened to use my free time to optimize the original material formula a little bit."

"Professor Lu, you might as well take a look at my plan."

"Material research is a matter of chance. To be honest, we are lucky to have a relatively accurate target."

"Next, we just need to continue experimenting with the original material formula, and we will be able to develop it sooner or later."

"You can test my material formula first. I think it's still promising!"

As Wang Dong said this, he gave Lu Yang a plan.

Lu Yang took the proposal with some surprise.

I was even more surprised at what Wang Donglai said.

If I hadn’t been standing in front of Wang Donglai and heard him say this with my own ears.

He even suspected that he was hallucinating.

However, Lu Yang reacted quickly.

After sorting out the other thoughts in his mind, he nodded and said, "Academician Wang, I will go down and test it right away."

After calming down, Lu Yang came up with a bold guess in his mind.

Could it be that what Wang Dong said was true?

Originally, this material formula was already very close, at least better than the material performance data currently in major laboratories.

If he were to write a paper based on the test data of this material, Lu Yang felt that he could produce at least five core papers.

If we continue to research and develop according to this material formula, even if it takes a long time, it will probably not take long before we can truly develop a qualified quantum material.

Lu Yang is very confident about this.

Thinking of this, Lu Yang was already getting impatient.

He took the plan given by Wang Donglai and went back directly.

Quantum information technology is related to quantum computers, but they are in different directions.

The quantum communication technology that Wang Donglai wants to study is based on quantum mechanics. It re-encodes and calculates the physical information carried by the quantum system, and then transmits the information through entanglement between quantum particles.

The efficiency of quantum communication depends on their ability to interact with light.

Of course, quantum communication technology has so many benefits.

There are also many people who have been studying it.

However, there has not been much progress over the years, which is enough to show how difficult this technology is.

Its difficulty is concentrated in three points.

First, in order to carry out long-distance invisible transmission of quantum states, the two communicating locations must simultaneously have the maximum quantum entanglement state.

However, due to the influence of environmental noise, the quality of the quantum entangled state will become worse and worse as the transmission distance increases.

Therefore, how to purify high-quality quantum entangled states is an important topic in quantum communication research.

Second, how to realize the relay and forwarding of quantum signals to achieve satisfactory long-distance communication effects.

So far, the industry has not achieved complete success in terms of light sources, channel nodes and receivers, and the required security requirements are not guaranteed and may be eavesdropped.

How to conduct attack and defense tests and security upgrades on actual quantum key distribution systems is a difficult problem faced by operation and maintenance.

The third difficulty is that there are loopholes in the key storage and forwarding of relay nodes, which may become a security risk point for the entire system.

How to solve serious problems such as the entangled state being too sensitive to channel length jitter and the bit error rate increasing too quickly with channel length is also a headache.

Generally speaking, as long as these three problems are solved, it will be equivalent to a breakthrough in quantum communication technology.

Researchers in the industry are also aware of these three problems.

The industry has also come up with several solutions to these three problems.

One of them is to use quantum relay technology to expand the communication distance.

Single photons suffer great losses during transmission, so for long-distance transmission, relay technology must be used.

However, the cloning principle of quantum states poses a big problem for quantum relays. Since quantum states cannot be copied, quantum relays cannot receive and amplify weak signals and then forward them like ordinary signal relays.

A quantum relay can only receive the signal of a photon before it reaches the longest transmission distance, store it first, then read out the signal, and finally send it out in the form of a single photon.

Quantum relay is very much like a torch relay, where one torch lights another before the fuel runs out, and the transmission continues in this way. Multiple torches cannot be lit at the same time.

In 2008, a research team led by Professor Pan Wei of the University of Science and Technology of China claimed to have made a breakthrough in the "quantum repeater research experiment" and published it in Nature.

For the first time in the world, entanglement exchange with storage and readout functions was realized, and quantum entanglement was established between two cold atomic ensembles connected by 300 meters of optical fiber.

The second solution is to use satellite-to-ground communication to achieve remote transmission.

With satellite communication, quantum communication between the two places becomes more convenient.

In a vacuum environment, photons have basically no loss, and the loss mainly occurs in the atmosphere lower than the ground.

It is estimated that as long as communication can be achieved over a distance of more than ten kilometers in the ground atmosphere, there will be no problem in communication between the satellite and the ground.

In this regard, scientific researchers have also conducted relevant experiments and successfully carried out single-photon transmission experiments over ten kilometers at night, verifying the feasibility of satellite-to-ground quantum communication technology.

The reason why Wang Donglai wanted to develop quantum communication technology was because he wanted to build a space station and establish a base on the moon.

In fact, there are factors like this.

Quantum communication technology can be said to be the best communication method currently available in a vacuum environment such as space.

Although there are difficulties, the scientific community's understanding of quantum communication is constantly deepening. If Wang Donglai can make a breakthrough on this basis, it will not shock the world.

Finally, there is another solution, which is to establish a quantum communication network to enable communication between multiple locations.

Establish a quantum communication network, expand the number of nodes, extend the communication distance, and form a wide area network with a large coverage area.

In this way, the application of quantum communication can be initially realized on the ground.

Of course, if this is done, the construction cost will be higher.

Therefore, although the world's first quantum government network was established in Wuhu in 2009, so many years have passed and a large-scale quantum communication network has not yet been formed.

prior to.

Wang Donglai does not pay much attention to quantum communication technology.

However, after truly engaging in research in this field, we discovered the problems that exist.

Technical difficulties arise one after another.

In the media, Academician Pan Wei is called the father of domestic quantum.

Although Academician Pan Wei has been engaged in research in this field and has indeed achieved many results.

but.

There is still a long way to go before it lives up to this name.

Moreover, after Wang Donglai went deeper, he discovered some tricks.

If Wang Donglai had not conducted in-depth research and had not had a strong ability to learn and comprehend, it would have been difficult to discover these deeply hidden problems.

Looking at the things he had discovered, Wang Donglai sneered and said softly, "There is really nothing new under the sun!" (End of this chapter)