Chapter 646: : Quantum decoherence

EU headquarters, Brisail.
At this time in a closed conference room, two men and one woman, three people sitting in a triangle on the round table.
Once again, outsiders will be able to recognize them.
Britain’s newly appointed Prime Minister Boris Johnson; French President Macaron; German German Prime Minister who took over the German baton from Germany’s
Iron Lady
, Anne Gret Lenkabauer, known as ‘Little Merkar’.
This time I came to Brussels to attend an EU conference.
Because of too many things happening in front of them, they also decided to see them today and discuss the future direction and countermeasures of Europe.
The look of the three people is not very good.
Because some time ago, they felt betrayed again.
The three countries of the United States and Russia, while controlling the success of nuclear fusion technology, almost simultaneously launched their controlled nuclear fusion research agreement, leaving them aside.
Today, the controlled nuclear fusion technology of the three countries of the United States and Russia has progressed, and Europe's own controlled nuclear fusion technology has not broken through.
If we continue to maintain this status quo, in the near future, they will be surpassed and abandoned outside the gates of the powerful countries.
This is not what they want to see.
"That thing, once again prove that they can't rely on it, what are they going to do next?" Macaron asked.
Both Johnson and Lenkabau were quiet and could not easily speak.
After thinking for a while, I finally got some movement.
"Now in a special period, Europe must unite." Lenkabauer crossed his fingers and looked calm: "The wind of historical change is very crucial. Compared with the three countries of the United States and Russia, we must hold a group."
"So?"
Johnson looked at him seriously and let her continue.
"You should all receive some news about the reasons for the breakthrough of the three countries in controlled nuclear fusion technology."
Macaron and Johnson looked at each other and nodded slightly.
Things are a bit clue, their intelligence department told them about possible speculation, and now the US announced artificial intelligence, they have confirmed the news. Moreover, the dispute between the Russian island and the US island was also very embarrassing, and they got a lot of news.
"What do you mean?" The two men looked at Lunkabauer.

Concentrate the artificial intelligence research team to tackle artificial intelligence and develop advanced artificial intelligence as soon as possible. We don’t have any strong technical team and funds on any one of us. If we don’t, we can’t do anything. The change has already begun, we’re not Prepare, we must withdraw from the center of the world."
In the words of Lunkabauer, let Macaron and Johnson nod gently.
This woman, who can take the big stick from the Iron Maiden, is in charge of the European leader, and her ability is definitely not worse than them.
"What proposal do you have?"

Concentrate the financial and technical talents of European countries, focus on the talents of all countries, and regroup research teams. As long as we bring together the best talents in each country, we have the best team and all technologies are successfully shared.
Bauer said.
The Institute of Artificial Intelligence, originally established in cooperation with Europe, has been retained by all parties. Now they are betrayed in the direction of controlled nuclear fusion technology research. They are indeed passive.
"If you promise, you can announce this news at the summit. Now China, the United States, Russia, and the island countries are all trying to seize technical talents. If they don't unite, we will be abandoned by the times. Don't expect the US to help us. The withdrawal of nuclear fusion technology is a reality."
Lenkabau stopped.
She said that she said it, and then they chose them.
In the era of this technology outbreak, they have no choice but they will retreat to the second place in the world.
"I agree." Macaron said with a raise.
Both looked at Johnson, and now only Britain.
After leaving the European Union, they are now in a dilemma, but they are also the top three countries in Europe and one of the top five hooligans. They have been played so many times. If they are still following the United States, they can only be isolated.
"I agree."
Johnson also raised his hand.
......
"I am landing..."
"100 metres……"
"50 meters……"
"10 m……"
" Landing success!"
On the back of the moon, the edge of the Chihai Sea once again welcomes guests, this time is a behemoth.
Chen Mo named this cave zone as: the ant cave area.
After several months of continuous launch of the construction machine and the 氦-3 extraction machine, the ant cave area is now a bit lively, and the machine works normally whether it is a new moon or a moonlit night.
It is now at the beginning of the month. It can be seen that more than a dozen 氦-3 extractors are working, and a 氦-3 extractor will be collected. The 氦-3 will be collected and stored in a storage compartment not far from the melting tunnel.
The Tianmai number can't hear any sound here, and it is quiet and quiet.
"Please note that the transport compartment is open."
The artificial intelligence of the Tianmai opens the door of the transport compartment. The robot in the transport compartment opens the seat belt of the fixed equipment. The various machines start up, slowly leave the transport compartment and enter the lunar surface.
In addition to the five 氦-3 extraction robots, all other robots entered the smelting tunnel.
This time, the number is quite large, and the size of the machine is larger than that of the goddess. There is also a toolbox with several robotic drill bits for the robot to replace itself.
A transport robot, carrying the 氦-3 collection chamber, is placed at the predetermined position next to the melt tunnel, and the collected collection tank is brought back to the maiden.
The one-ton collection chamber is equipped with a refrigeration system with 100 kg of helium-3, which is collected by the 氦-3 extraction robot and returned to Earth for use as a controlled nuclear fusion fuel.
"Earth, here is the Virgo, all missions are completed, request to return."
After all the robots are finished, the collection box of the 氦-3 is recycled. After several robots are loaded with some moonstones, the artificial intelligence of the maiden sends a request signal.
"Allow return."
In the laboratory of Building 1, the ink girl received the signal and passed the instruction.
"Mergo, the girl returned."
"Ok."
Chen Mo, who was in front of the test bench, responded with a serious look at the quantum chip design in front of him.
This is a quantum chip design made by the ink girl according to his ideas.
To make quantum computers, the importance of quantum chips is self-evident.
Quantum chips need to integrate quantum circuits into a substrate to carry quantum information processing. There are many ways of quantum chips, including superconducting systems, micro-nanophotonic systems, atomic systems, ion systems, and semiconductor quantum dot systems.
The research direction Chen Mo chose was superconducting system.
He currently has room temperature superconducting materials, and the technology of superconducting quantum chip systems is relatively difficult to implement.
In the research of quantum chips, Chen Moyou has several technical solutions obtained in the science and technology library, combined with some theories in reality, to select the best, and hope to develop more efficient quantum chips.
The difficulty in current research is to extend the decoherence time of qubits.
Quantum coherence refers to the special connection between quantum, which can be used to derive other quantum states from one or more quantum states.
If a series of quantums are coherent with each other, this series of qubits can be regarded as a 'destination community'. Processing one of the bits will affect the running state of other bits. The quantum computer can run efficiently, which is based on the characteristics of quantum.
Decoherence is one of the basic mathematical features of quantum mechanics.
The simple explanation is that there is a continuous probability probability of 0 to 1 states, and at the instant of 'observation', the mutation is a certain function point of 0 or 1.
The explanation of the image is that in Schrödinger’s cat experiment, when Schrödinger did not open the box to 'observe' the cat, the cat lived in the box with a certain probability, in a superimposed state of immortality, life and death, and when Schrödinger When opening the box 'observation', the cat is not sure that the existence of life and death mutates into reality at the moment of 'observation', life or death, ie 0 or 1, one of them.
The computational time of a quantum computer is affected by quantum decoherence.
The coherence between qubits is difficult to maintain for a long time. Once encountered by external entities, the qubits lose their coherence.
In a computer, qubits interact with the external environment and decoherence occurs. The period from the coherent state to the loss of the coherent state is the decoherence time. If the decoherence time is not long enough, the quantum computer cannot calculate it.
Increasing the decoherence time is a difficult point in quantum chip technology, and it is also one of the problems Chen Mo is currently studying.
In addition to extending the quantum bit decoherence time, realizing the preparation, measurement and manipulation of spin qubits, Chen Mo is now studying the subject.
In the technical theory obtained by Chen Mo from the Science and Technology Library, superconducting quantum interference is the best theoretical technique that can be used to manipulate microscopic quantum states.
In addition, there is control precision, and it is necessary to break through the fault-tolerant quantum threshold, and quantum chips are likely to succeed.
In order to ensure the efficient implementation of quantum computing, the error rate of logic operation can't exceed 10 orders of magnitude. In order to achieve this fault tolerance, Chen Mo chose to use topological quantum error correction as the research direction.
Utilize the topological properties of quantum states for quantum error correction processes.
The quantum data obtained by the science and technology library has recorded this theory. There is also a similar topological quantum error correction theory in the real science. This is the highest fault-tolerant quantum computing scheme that can be realized by the prior art.
"Go to the lab."
Chen Mo stood up from the platform and let the ink girl store the information of the quantum chip design and go to the quantum laboratory. Now that the method is not feasible, he needs to experiment to verify his ideas and ideas.