Chapter 289 Great Historical Prelude
Chapter 289 Great Historical Prelude
A military base in Mohe.
After debugging the equipment, Yan Hui and others established a video connection with Sansha through the military encryption network.
”Mr. Kang, I’m ready here.”
”Well, let’s get started.”
After Kang Chi finished speaking, he first started the detection device of quantum A.
The result was spin down.
Yan Hui followed closely and also conducted a detection, and the result was spin up.
However, the results of a few times can only preliminarily conclude that the entanglement relationship is not affected by the distance. In order to further verify, they repeated the experiment ten times.
As the two continued to report each other’s results, Ren Zhou’s expression gradually became excited.
The two entangled quantum particles were in opposite spin states ten times, indicating that the entanglement relationship is very stable.
And this spin state is constantly changing randomly, and it is not locked because of the first detection! Quantum mechanics has always been famous for its thought experiments, so most people who do scientific research like to treat it as a hobby, and think about it as a philosophical problem when they have nothing to do.
So although Ren Zhou is not a professional quantum scientist, he still has the ability to analyze the results so straightforwardly, and he knows exactly what this means…
”It’s right to stick with it… We… are witnessing a great historical prologue!”
Although Cai Yaobin also knew that this experiment must be very important, he didn’t expect Ren Zhou to give such a high evaluation, so he couldn’t help asking: “Historical prologue?”
”Yes!”
Ren Zhou nodded very affirmatively: “The most intuitive thing is that traditional communication technology will be completely overturned.”
”The network no longer needs optical fiber, wireless communication no longer needs satellites and signal towers, and there is no problem of whether there is a signal or not. Even if you are in any corner of the universe, you can communicate and surf the Internet with ultra-low latency…”
”And this is only the most direct impact, and there are also indirect effects such as quantum computers, cutting-edge high-energy physics research, etc…”
”Of course, today is just the beginning, and the actual speed of change will definitely be affected by many factors.”
”For example, we certainly can’t directly disclose this research, let alone push this technology to the civilian market too early, if we don’t Of course, it is equivalent to providing others with a specific research direction. Although they may not be able to catch up for a while, I think we should try to extend this time as much as possible…”
”But it can’t be too long.” Kang Chi has some objections to this.
”As long as we don’t provide specific details, they will still be confused about how we made a quantum communication chip.”
”And… it’s not that I’m confident. I think even if they know the direction, they may not be able to make many devices.”
”I have only made a pair of communication quantums now, but the real quantum communication chip should be the same as traditional semiconductors. It needs a brand new chip industry chain to support it. I think it is difficult to keep such a large-scale industry chain completely confidential.”
”So under the condition of a relatively high level of national security, I think it can be appropriately promoted to the civilian market and establish a quantum hegemony like their previous semiconductor hegemony!”
After listening to the argument between the two, Cai Yaobin suddenly had a new understanding of the importance of this matter, and at the same time, his blood boiled.
Quantum supremacy…
Just hearing the name, it feels awesome!
However, there is a question that Cai Yaobin still doesn’t understand.
”That… let me ask a layman a question. Isn’t the direction of quantum spin like tossing a coin, unable to transmit valid information? How can we transmit information by tossing a coin?”
Kang Chi smiled immediately, and then patiently explained to him: “If you can only toss it once, then it is indeed invalid information, but as long as you toss it a few more times, this problem will not exist.” ”The data now are all 0 and 1, right?”
”As long as Yan Hui and I agree that he observes the quantum 10 times per second, if I want to transmit the information of 0, then I will not observe it directly, so that the result of his observation must be both up and down, and he will mark the data as 0 for this result.”
”If I want to transmit the information of 1, then I will make an observation, and in the next second, let the detectorAlways in the open state. ”
”Continuous observation will lock the direction of quantum spin, so the results of Yan Hui’s ten observations must be the same.”
”In this case, they will mark the information as 1, thus completing a simple data transmission.”
After listening to this, Cai Yaobin suddenly realized: “You are still smart. I feel that my brain can’t work when I hear quantum mechanics now.”
”That’s because you are not calm and think it is too mysterious.” Kang Chi pointed to an input window on the computer, “We will conduct this experiment next, or you can enter a string of numbers and send it over. ”
Cai Yaobin nodded, stepped forward and typed out a random string of numbers on the keyboard.
The system compiled and quickly converted the string of numbers into binary 0 and 1, and began data transmission.
Yan Hui quickly gave the analytical answer: 55687390787.
Cai Yaobin carefully checked twice and confirmed that all the numbers matched! ”Fuck, have we achieved true quantum communication?”
”What else?”
”Awesome… and this accuracy rate, can it be used in practice?”
”About the same.” Kang Chi nodded, “Using this communication scheme, the accuracy rate is about 99.9903%, which is actually very easy to calculate.”
”If you have a coin in your hand, and then toss it ten times in a row, the probability of each head facing up is 50%, then the probability of ten consecutive heads facing up is 50% to the 10th power, which is 0.0097%, which is the error rate. “But this solution wastes the life of quantum. The amount of data that a single entangled quantum that I have captured so far can transmit is 11.7KB. If you want to increase the amount of data, you can only increase the number of quantum. For example, if you build a quantum communication chip with 100 million quantum, you can transmit a total of 1.1TB of data, but the cost of use is estimated to be very high.” “It’s okay, this is just the beginning.” Cai Yaobin immediately comforted, “Maybe there will be a technological breakthrough in the future?”
Technical breakthrough? This is already the top black technology…
If there is no metal element 376, the life of quantum is estimated to be impossible to increase, and it can only be increased.
Ren Zhou proposed: “Introducing ternary, multi-base or e-base, can it improve transmission efficiency and service life? ”
Ternary and E-ary?
Although it sounds a bit high-end, it is actually useless.
If the efficiency of e-ary is 1, then the efficiency of m-ary is e/m * ln m,
The efficiency of ternary is e/3*ln3=0.9954459403,
The efficiency of binary is e/2*ln2=0.9420846927.
After all the work, it is nothing more than a 5% efficiency improvement.
Kang Chi shook his head: “There is no need to waste time on this little performance improvement… It is more important to find new metal elements.”
”New metal elements?”
”Well, materials always rank first in limiting the application of science and technology…”
(End of this chapter)