Rebirth: Fight For Life

   Chapter 586 Everyone's thoughts (don't raise it, please subscribe)

  He Anzhi felt that he had regained a victory, and grinned happily.

  Gu Song hurriedly said: "Teacher, no, there are many places to ask you about model building and algorithm architecture."

  Guo Yue raised his hand: "Don't! Just remember to tell me the progress of the paper from time to time, so that I can study the best application of artificial intelligence in this field."

  He Anzhi laughed out loud, this teacher is not like a teacher, and the students are not like students.

   After a while, he found it boring to laugh, and he often doubted himself in the past six months.

  Has the times changed, or is it really old? Why is the difference so big?

  Guo Yue has the identity of his mentor. He doesn't know what his feelings are like. When he has time, he wants to listen to him pour out his bitterness and be happy.

  He Anzhi felt a little sad.

   They are all scholars who have been working in their fields for so long, and suddenly feel that their knowledge reserves seem to be insufficient.

   And the source, when we get to the bottom, is all related to the young man in front of him making tea.

   It is from his mind, as well as his private research institute, that new technologies are continuously coming out.

   And now, the three of them are actually chatting about the topic of his doctoral dissertation.

  Gu Song poured tea for the two of them, and then said: "After a breakthrough, it needs a long enough time to digest and absorb. This is also in a hurry, or should I talk to Zhang Dong?"

   "Don't!" He Anzhi was taken aback, "It made me complain like you."

  Gu Song laughed: "Then let's relax today, don't think about research first, let's chat."

  He Anzhi looked at the main room and the small back garden covering the room, listening to the cicadas chirping outside the wall, and took a sip of tea: "Alright, take a rest."

  …

  Lin Yaodong and the others knew that Gu Song had come back, but now they wanted to wait for the little level at hand to break through before letting Gu Song come over.

  Gu Song came up with an idea before his visit, how to build a logic circuit between different quantum gates to improve the fault tolerance rate.

   But ideas are ideas, and objects are objects.

   In fact, the material breakthrough of high-temperature superconducting graphene has greatly reduced the difficulty of experiments.

  At least, each trial will not cost that much money and time.

   But designing quantum logic circuits always needs to jump out of the circuit design inertia of traditional computers.

   After all, one is a linear operation and the other is a probability operation.

   Now that Gu Song has been gone for so long, they have survived the first few days without Gu Song's participation, and finally they are struggling to make the first logic circuit.

   Naturally, before Gu Song comes, they can have staged results, and then they will have face.

  Gu Song sent Guo Yue and He Anzhi to the gate of the courtyard, and made a phone call to ask them about their situation, and was told that you would come back soon after we made the logic circuit.

   He smiled and shook his head. After some encouragement, he hung up the phone.

  The road to quantum computing is really long.

   First of all, how to build a quantum gate has stumped too many people. Light quantum does not require superconducting materials, but the manipulation of multiple light quantum gates is a huge difficulty.

  With superconducting materials, it involves the breakthrough of high-temperature superconducting materials. At this point, I don't know how many people got stuck.

   Even the graphene currently used is not cost-effective from the perspective of cost. Because...graphene is too expensive.

   If it wasn't for Gu Song's preparation of a process that can greatly reduce the cost of graphene production, this road would have to be longer.

   Now, with qubits and materials for building quantum gates, how to draw a quantum circuit diagram?

   Unlike classical computers, there is an additional concept of "measurement" in quantum computing.

The concept of    is very complicated to explain. It is always that, to design a quantum circuit diagram, it is necessary to define the qubits carrying information as different observation states through different types of quantum gates based on effective mathematical algorithms.

  In this way, through the combination of qubits and various quantum gates, a practical quantum circuit diagram can be designed.

   According to such a quantum circuit diagram, the "manufactured" quantum computer can carry out "programs" based on the algorithmic logic of this circuit diagram. Such programs must conform to the machine language of the quantum computer.

The question of    comes, practical value is the key.

   The number of qubits that can be manipulated, to some extent, reflects the fault tolerance rate of the quantum computer.

Only when the number of manipulable qubits reaches at least one million, will the error rate of the quantum computer be reduced to less than 0.1%, with a fidelity rate of over 99.9%, which is regarded as a fault-tolerant universal quantum computer (usefulerrorcorrectedQC) stage.

   In Gu Song’s original timeline, how many qubits can the quantum computer claim to have achieved quantum supremacy manipulate?

  54.

   How much fidelity?

  0.1%.

   On the one hand, the manipulation of 54 qubits is achieved with a fidelity rate of 0.1%, and it claims to have achieved quantum supremacy.

   In addition, it is necessary to control millions of qubits at a fidelity rate of more than 99.9% to truly enter the general-purpose quantum computer stage.

   What a long road!

   Of course, the meaning of quantum supremacy does not mean how powerful that quantum computer is. It just shows that a quantum computer, in a specific calculation, has achieved far more capabilities than the strongest supercomputing on the surface.

   On the way from 0.1% fidelity to 99% fidelity, it does not mean that these quantum computers are useless.

   That is a special quantum computer specially applied to some specific algorithms, especially some fields of probability calculation.

   Therefore, every step forward is of great significance.

   Now, Lin Yaodong, Ni Guangbei, and Wang Suizhen are worrying about the drawing of quantum circuit diagrams.

   This is a concentrated outbreak of algorithms, materials, circuit design... many fields.

   It was precisely because he knew the difficulty of this thing that Gu Song did not push it so quickly.

   In the long transition to a universal quantum computer, he had already planned the solution.

   In order to prepare for the big changes after next year, it is enough that the products of the first stage can be applied to solve some specific problems.

  …

  In Yanjing, scholars are worried about future technology. In Port Moresby, however, Isaac Somare ushered in his truly coveted interests.

   After a few days of calm thinking, he was completely persuaded by Gu Song's statement.

  Papua New Guinea is just a small country. His biggest concern, if he analyzes it layer by layer, is nothing more than fear in front of that appalling technology.

   Then he thought about it, this world, there are many things that can become his big fear, but it just didn't hit him in front of him.

   Now, this is more of an opportunity.

   No matter how high Isaac's heart is, he will never dream of becoming the world's most powerful country.

   Then, isn’t it enough to be a force to be reckoned with and stand behind a certain great power?

   Besides, it is far from necessary to stand in line now.

   This kind of mutual benefit is exactly the way they are very skilled in governing the country.

   During the secret negotiations with Bai Hua and Jian Yushu, Isaac's outline of PNG's future became more and more clear.

   Where is the biggest risk in the medium term? If this place really becomes the center of the vortex, Papua New Guinea will probably be caught in gunpowder smoke.

   But as long as his Somare family is there and has always been strong enough, isn't there a chance to rebuild again and grasp the overall situation more deeply?

   Those opposing voices, as well as a large number of uncivilized natives, were his worries.

  After Gu Song kept throwing out those baits, Isaac finally found countless reasons to convince himself to seize the opportunity.

  Everything depends on how the future develops.

  …

  Since Lin Yaodong's trio came up with the results and asked Gu Song to test it, Gu Song was so happy to show his presence again, and went to He Ting and Chief Engineer Ji for a shake.

   Baojia Qi said, just do your own thing normally.

   Therefore, the fifth-generation aircraft and supersonic gliding vehicles naturally have to actively cooperate.

   Seeing Chief Engineer Ji, he asked with a complicated look: "High-temperature superconducting graphene...how did you discover it?"

  Gu Song was surprised: "You know it too? Oh yes... You can't possibly not know."

   As the chief engineer for the development of cutting-edge defense equipment, Chief Engineer Ji can certainly use any new materials immediately.

  Gu Song said with a smile: "I'm a little inspired recently, and I just took this as the topic of my doctoral dissertation, the application of artificial intelligence in computational materials science."

  Chief engineer Ji stopped asking for details, and sighed vaguely: "The new carbon fiber, superconducting graphene, has given me a headache recently."

   "Isn't this a good thing? What's the headache?"

   "Carbon fiber is okay, graphene, you have to change the design when you use it, I don't have to feel uncomfortable."

   Gu Song was delighted: "Can this be called the trouble of happiness?"

   "The new ideas you provided before your visit have verified two, thank you very much."

   "Should be. Are there any new difficulties now? I can discuss it when I have time."

  Chief Engineer Ji looked at him, hesitated for a while, and then said, "No need for the time being."

  Gu Song didn't care, so he got up and said goodbye.

   Then Chief Engineer Ji said: "President Gu, I'm older, so I want to call you a little Gu."

  Gu Song stopped his body and looked at him suspiciously: "You just call me Xiao Gu, it should be. Did something happen?"

   "The project has reached a new stage, undergoing a confidential review and financial audit... You, also pay attention."

   Gu Song was stunned, and then knew that this was the kindness of Chief Engineer Ji.

   Unlike Gu Song, he is a pure technician. Maybe because of the location, know the latest technology, but not necessarily know other things.

   Maybe he said this because he heard a few words, he valued his role, or he was thinking of protecting his younger generation.

   However, confidentiality reviews and financial audits are normal.

   Even if there is an absolute advantage, there will be programs that should be there.

  Gu Song smiled gently: "Don't worry, I know about this, and I talked to Commander He long ago."

  Chief Engineer Ji stared at his forehead when he saw his confident and calm expression.

  In there, how long is it? Why is everything fine?

   It didn't break down, did it? Thousands of subscriptions have dropped, but don't raise them. What if they die? Hey!

   (end of this chapter)