Chapter 288 Fisherman and Fish
Chapter 288 Fisherman and Fish
In the field of optical fiber wired quantum encryption technology, China has achieved 100 kilometers of direct quantum distribution, which is of practical value. The main direction of the current breakthrough is quantum repeaters, which are used to transfer and extend the communication distance.
In the wireless field, many attempts have also been made.
In 22 years, China Aerospace successfully launched the world’s first quantum science experimental satellite “Mozi”, and through the Mozi satellite, entangled quantum was launched to the ground Deharing and Dayan Observatory, and a 1,200-kilometer quantum state remote transmission experiment was conducted on the ground.
The hosts of these two experiments are Pan Jianwei’s team from the Luzhou Microscopic Matter Research Center.
In terms of satellite wireless communication, they used the “quantum teleportation” scheme based on the dual-photon path-polarization mixed entangled state to solve the problem of photons being affected by atmospheric turbulence in the propagation of atmospheric channels, successfully verified six typical quantum states, and improved the transmission fidelity of entangled quantum.
However, because the quantum carrier is still a radio wave after all, it is very susceptible to environmental interference. In addition, the quantum observation collapse phenomenon makes the quantum very “fragile”. Even if the stealth scheme is used, the fidelity of this wireless key distribution is still a long way from practical application.
This time, Kang Chi directly increased the distance of this test to more than 4,000 kilometers.
If this experiment is successful, it should not be a problem to extend the distance to Mars and the Earth.
After all, this is quantum communication in the true sense. It is based on the entangled relationship between two quanta at a higher dimension. In the process of information transmission, it does not need to rely on any carrier in the real world, and will not be interfered by factors in reality.
If you want to interfere with quantum communication, you have to interfere with high-dimensional space.
But even Kang Chi, who can cheat, can’t do this!
At least, it’s definitely not possible now.
Unless there is even a little theoretical basis in the future.
…
Although Cai Yaobin doesn’t understand the specific technical details, he can roughly guess how important it is through the distance of this experiment.
It should be similar to launching a quantum experimental satellite, right? In addition, Kang Chi will personally host the experiment, so Cai Yaobin dare not be careless at all. He directly called the leaders of the southern and northern theaters, explained the situation to them, and hoped that they could cooperate with the experiment.
In fact, the two leaders had just met Kang Chi at Xifei two days ago. After returning, they even dreamed of the spectacular scene of the Y-20S prototype taking off on the field runway. Therefore, when they heard that it was his experiment, they immediately attached great importance to it.
Two hours later, a Y-20 and two J-20s landed at Pangu Airport first.
At this time, Kang Chi was still packing the experimental equipment with Yan Hui and others. After more than an hour, when they packed the equipment and had a meeting with Yan Hui and others to talk about the use of these equipment and the specific process of the experiment, the plane from the Northern Theater Command finally arrived.
They were far away so it took a little longer. There were also two fighters and a transport plane.
The main reason was that they didn’t know whether Kang Chi was going to Sansha or Mohe, so they simply arranged escort fighters…
When Kang Chi drove the equipment out of Pangu Base and saw a row of military aircraft parked at the airport, he couldn’t help but be slightly stunned.
As for Yan Hui, he was even more confused. After a moment, he said with a guilty conscience: “This posture… Why does it feel like they are taking us to war?”
”You think too much. We don’t need our bodies in war. They are escorting us, don’t you understand?” Kang Chi was very satisfied with this. “As expected, Mr. Cai is more reliable and full of security!”
Chen Hai: “…”
Why do I feel like a dispensable mascot recently?
…
Among the two test sites, Kang Chi chose Sansha without hesitation.
Mainly because Mohe in April is still a bit cold. Going there to suffer from the cold is not as good as going to Sansha to see the sea and cultivate your sentiments.
So the glorious and arduous task of Mohe was handed over to Yan Hui.
Ten minutes later, six planes began to take off one after another.
After two hours of flight, the plane successfully landed at Yongxing Airport. As soon as he got off the plane, Kang Chi felt a heat wave and the air was filled with a light and salty smell of the sea.Shu Jinchuan, the garrison officer of Yongxing, immediately saluted when he saw Kang Chi and his men coming down: “Dr. Kang, welcome to Sansha!”
After the salute, he shook hands with Kang Chi again and said with a smile: “I am Major Shu. If Dr. Kang needs any cooperation, just tell me.”
”Well… this experiment is actually very simple. You just need to find a room to put the equipment for us.”
”Got it!”
So the three experimental assistants brought by Kang Chi, with the help of five soldiers, quickly moved the experimental equipment on the transport plane to the pickup truck, and then moved with the convoy to an empty warehouse. While the assistants were installing and debugging the equipment, Kang Chi received another call from Cai Yaobin.
“Have you arrived in Sansha?”
”Yes, we just arrived not long ago.”
”Can you wait for us? We still need an hour to arrive!”
”We?”
”Mr. Ren heard that you have made progress here, and he also wants to come and see.”
”Oh, I see, it’s okay, you don’t have to rush, Yan Hui probably hasn’t arrived yet.”
”Well, that’s good!”
After hanging up the phone, the experimental device was almost debugged. Kang Chi checked it carefully again. After confirming that there was no problem, he asked Major Shu to take them around.
Although Sansha is a city, the area of the main island is actually very small. Most of it is expanded by land reclamation. You can see the beach and the sea just by walking a few steps.
It must be said that the sky and sea here are really blue, just like adding a layer of filter, which makes people feel relaxed and refreshed at a glance.
However, the sun was really strong. Kang Chi felt his skin was a little hot after being exposed to the sun for less than ten minutes, so he hurried back to the temporary laboratory. As soon as he entered, he heard the sound of an airplane engine in the sky.
Sure enough, not long after, Cai Yaobin and Ren Zhou entered the temporary laboratory under the leadership of several soldiers. After a simple greeting, Ren Zhou couldn’t help asking Kang Chi: “Did you really find that hidden variable?”
Kang Chi nodded, then shook his head: “I just confirmed that this hidden variable exists, but how it specifically affects the quantum entangled state is still an unknown.”
Kang Chi briefly explained his previous high-dimensional conjecture using the example of the island and the sea surface.
“There are two more element decay devices on the quantum trap of this experimental device. They are like the two hands of a fisherman. When the fisherman sees a fish fin exposed on the undulating sea surface, he immediately slaps both sides of the fin, converting the mass into energy, so the water level drops again, and a complete fish appears. What we have to do next is to use a net to catch the fish.”
Cai Yaobin immediately wondered: “Why doesn’t the fisherman use a net to catch the fish directly?”
”Mr. Kang just gave a more vivid and easy-to-understand example.”
Ren Zhou immediately helped Kang Chi and explained to this layman who was even more ignorant than him,
”The rules of higher dimensions are simply incomprehensible to us. Although the two worlds may blend with each other, they can even use energy to affect the exchange. boundary point, but in the final analysis, both sides are in a world with completely different rules. ”
”If we take Mr. Kang’s example, then the fisherman’s net bag is a material that melts when it comes into contact with water, just like we cannot enter high-dimensional space.”
After Ren Zhou finished speaking, he turned his head and looked at Kang Chi: “I wonder if my understanding is wrong?”
Kang Chi nodded: “It’s almost the same reason.”
Cai Yaobin suddenly realized: “I understand this explanation, but how can we emit two photons at the same time at the moment when the entangled quantum is emitted? And just “pass by” this entangled quantum without bias, and force out the real entangled quantum at the same time? ”
In fact, Ren Zhou just thought of this problem,
but it feels that he can’t think about it at all…
Because it’s too scary.
Don’t look at Kang Chi’s equipment here. It looks ordinary, but this thing is definitely an ultra-precision instrument that is more difficult to make than a photolithography machine.
In a sense, the whole device is a miniature particle collider.
It just doesn’t let particles collide directly, but uses the strong force between multiple waves to cause the dimensional vibration around the quantum, thereby generating some new quantum.
It has to collide, but it can’t really collide, and the size of the whole device is so small…
The difficulty of manufacturing this kind of multi-particle precise dimensional agitation device makes Ren Zhou feel numb just thinking about it! He is completelyI can’t imagine how Kang Chi made it…
Even if Kang Chi told him, he probably wouldn’t understand, so he simply didn’t ask.
So Kang Chi and Ren Zhou both ignored Cai Yaobin tacitly and skipped this topic…
(End of this chapter)