Upgrade the world from Hongmeng system

Chapter 308 Quantum Impossible to Communicate
In the afternoon, Wu Hao and President Pan started negotiations on the joint research and development of quantum networks.

"Mr. Wu, why do you suddenly want to cooperate with us to develop the quantum network project?" Principal Pan felt very strange.

Although quantum network technology is related to quantum computing, as a technology company, it often invests in applied technology, and is generally not interested in such basic research projects.

After all, the investment and output of basic research are generally not directly proportional. Many researches often have no results, and the investment is huge and takes a long time. Ordinary companies will not set foot in these fields.

"Actually, it wasn't sudden. Today, I happened to meet Professor Dong who was researching quantum U disks. I was very interested in his research direction. I also had a sum of money on hand and wanted to invest in the field of basic science. We made money from the market, so we should reflect on it." Come and promote the development of science and technology to benefit mankind."

Wu Hao made a high-sounding excuse that it was impossible for everyone to understand him. Anyway, he had to find a way to invest the money, so it was better to do something meaningful.

Professor Dong's research may not be fruitful, but if it can promote the construction of quantum networks and improve the basic conditions of quantum computing, it will also benefit mankind.

As for the funds given by the system, you should find a way to spend them in a reasonable place during the mission period.

Xialong University of Science and Technology has top domestic talents and strict school spirit and rules. It is a trustworthy partner. Instead of spending money on the society, it is better to give money to them, and it is more likely to get scientific and technological achievements.

"Mr. Wu has this idea, which is really a blessing to the society! As a responsible entrepreneur, you should always think about how to give back to the society. I agree with your idea very much. Our school has set up a related project team in terms of quantum network. It is the time when a large amount of investment is needed to speed up the progress of the project, and Mr. Wu is welcome to invest!"

Principal Pan is very pleased that the application of quantum computing in artificial intelligence, big data analysis, virtual scenes, etc. has entered the practical stage. The number of quantum servers is increasing, and the demand for quantum networks is becoming more and more urgent.

However, the country's annual R&D investment is limited. Seeing that foreign research institutions have made achievements and are seizing this market, the school is also very anxious, hoping to win more funds and speed up the R&D progress.

"Principal Pan, see how much money I need to invest here."

Wu Hao needs to estimate whether his funds are sufficient. After all, if the one-time investment is too large, there will be less funds that can be used later. If a breakthrough is made in research, he can enter the next stage, but he is delayed due to lack of funds. Progress will outweigh the gains.

"Our current funding gap is one billion yuan, Mr. Wu, do you think it is easy to solve it?" Principal Pan tentatively asked.

After all, Haotian Technology has just invested more than two billion yuan in the field of quantum computing, and now it needs one billion yuan. For a high-tech enterprise that has just started, the pressure will be very high.

"No problem, I still have the money, prepare the contract, let's get it done as soon as possible!" Wu Hao was very forthright.

After investing 10 billion yuan, I still have more than 60 billion yuan in my hand, which can fully meet the amount of capital investment needed later.

The two sides happily signed the second cooperation agreement, and the burden on Cao Yongliang's shoulders was even heavier.

……

Before leaving Xialong University, Wu Hao wanted to ask Professor Dong for some advice, so he found a restaurant and invited Da Bin to have a small dinner together.

After drinking for three rounds, and his stomach was full, Wu Hao asked a question: "Professor Dong, please give us a popular science, why quantum can't be used for communication"

Professor Dong thought for a moment, thinking about how to explain this matter in more common language.

"Actually, many kinds of elementary particles can be called quantum, the typical ones are photons, electrons, neutrinos and so on! Experiments tell us that if two photons are entangled together at the beginning, then they will form an entangled system , no matter how far apart they are from each other, both will sense each other at the same time.”

"The most common experiment is that when scientists measure one of a pair of entangled photons, if its spin is found to be down, then the spin of the other entangled photon must be up, and the entanglement speed is at least the speed of light. Four orders of magnitude."

"But we can't burn binary information into quantum entanglement, because the spin results caused by the measurement of entangled photons are random, and we can't deliberately control the spin direction of entangled photons!"

"And the quantum is unmeasurable, and once it is measured, it will collapse. For example, I have a coin in each of my left and right hands. When the hands are pressed, we don't know whether the coin is heads or tails. At this time, they are entangled. , as long as we open our palms, we can get a definite answer, but at the same time the entanglement is broken."

Professor Dong's meaning is very simple, because human beings cannot measure or control the quantum state, a random result has no specific meaning.

"Oh, so that's how it is. Professor Dong explained it this way, and I finally figured it out." Dabin looked suddenly enlightened. As the so-called interlacing is like a mountain, his research field is completely incompatible with the field of quantum mechanics. Until now Just figured out some basic meanings.

"Professor Dong, what about the so-called quantum secure communication technology?" Wang Hao asked.

In terms of quantum information, this kind of application is the most reported by the media, but the specific principle is a bit confusing.

"Well... let's put it this way, this characteristic of quantum determines that the quantum superposition state cannot be cloned, nor can it be observed without collapsing. So when the quantum state collapses, we also know Quantum states are measured."

"So we can use this characteristic of quantum to protect traditional electromagnetic wave information. If the quantum state suddenly collapses, we know that this information has been measured, and we know that this information must be being tapped. Then the sender You can stop sending the information."

"If someone tries to interrupt the transmission of quantum encrypted information by continuous eavesdropping, then we can determine the hiding place of the eavesdropper through the specific location of the eavesdropping, and the rest will be left to the police uncle!"

"As long as there is no quantum state collapse in the process of quantum communication, the information on the receiver's side is definitely safe information that has not been eavesdropped. When quantum communication is used in national defense, information security will be absolutely protected!"

For a more specific explanation, Professor Pan took out a piece of paper and a pen, and began to demonstrate on the paper.

"More specifically, quantum encryption communication has two transmission channels, one transmits entangled particle pairs, and the other uses electromagnetic waves to transmit classical information..."

The explanation is easy to understand, so that others can understand the meaning at a glance.

(End of this chapter)