Technological power starts with upgrading lenses

A military base in Mohe.

After Yan Hui and others debugged the equipment, they established video contact with Sansha through the military encrypted network.

"Mr. Kang, I'm ready."

"Well, let's get started."

After Kang Chi finished speaking, he first activated the A quantum detection device.

The result is spin down.

Yan Hui followed closely and also conducted a detection, and the result was that the spin was upward.

However, from a few results, they could only preliminarily conclude that the entangled relationship was not affected by distance. In order to further verify, they repeated the experiment ten more times.

As the two continued to report each other's results, Ren Zhou's expression gradually became excited.

Two entangled quanta have opposite spin states ten times, indicating that the entanglement relationship is very stable.

Moreover, this spin state continues to change randomly and is not locked due to the first detection!

Quantum mechanics has always been known as a thought experiment, so most people who engage in scientific research like to treat it as a hobby, and think about and communicate with it as a philosophical issue when they have nothing to do.

So although Ren Zhou is not a professional quantum scientist, he still has the ability to analyze such straightforward results, and he also knows exactly what this means...

"It's right to persevere... We... are witnessing the prelude to a great history!"

Although Cai Yaobin knew that this experiment must be very important, he did not expect that Ren Zhou would give such a high evaluation, so he couldn't help but ask: "Prologue to history?"

"right!"

Ren Zhou nodded with certainty: "The most intuitive thing is that traditional communication technology will be completely subverted."

"The network no longer requires fiber optics, and wireless communications no longer require satellites and signal towers, and there is no question of whether there is a signal. Even if you are in any corner of the universe, you can communicate with the Internet with ultra-low latency..."

"And this is only the most direct impact, indirect effects include quantum computers, cutting-edge high-energy physics research, etc..."

"Of course, today is just the beginning. The actual speed of change will definitely be affected by a variety of factors."

"For example, we definitely cannot disclose this research directly, let alone push this technology to the civilian market prematurely. Otherwise, it will be equivalent to providing a specific research direction to others. Although they may not be able to catch up for a while, I I think this time should be extended as much as possible..."

"But it can't be stretched too long." Kang Chi had some objections to this.

"As long as we don't provide specific details and just launch a quantum communication chip, they still can't figure it out and don't know how we made it."

"Also... I'm not confident. I think even if they know the direction, they may not be able to build many devices."

"I have only developed a pair of communication quanta, but real quantum communication chips should be the same as traditional semiconductors and require the support of a brand-new chip industry chain. I think it is difficult to keep such a large-scale industry chain completely confidential. "

"So when the level of national security is relatively high, 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 two people's argument, Cai Yaobin suddenly had a new understanding of the importance of this matter, and at the same time, his blood couldn't help boiling.

Quantum supremacy…

Just hearing this name makes me feel so awesome!

However, there is a problem that Cai Yaobin still doesn't understand.

"Well... let me ask a layman's question. Isn't the direction of quantum spin like tossing a coin, unable to transmit effective information? How do we transmit information by tossing a coin?"

Kang Chi smiled immediately, and then patiently explained to him: "If it can only be thrown once, it is indeed invalid information, but as long as it is thrown a few more times, this problem will disappear."

"The data now are all 0 and 1, right?"

"As long as Yan Hui and I agree to let him observe the quantum 10 times per second, if I want to convey the information of 0, then I will not observe it directly. In this way, the results of his observations will definitely be both up and down. This kind of result he The data will be marked as 0."

"If I want to convey the information of 1, then I make an observation and leave the detector on for the next second."

"Continuous observation will lock the spin direction of the quantum, 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 hearing this, Cai Yaobin suddenly became enlightened: "Your brains are better. Now that I hear quantum mechanics, I feel like my brain can't move."

"That's because you don't have a calm mind and regard it as too mysterious." Kang Chi pointed at an input window on the computer after he finished speaking, "We are going to conduct this experiment next, how about you enter it casually? Send a string of numbers."

Cai Yaobin nodded, stepped forward and pressed a series of numbers on the keyboard at random.

Through compilation, the system quickly turns this string of numbers into binary 0s and 1s, and starts data transmission.

Yan Hui quickly gave an analytical answer: 55687390787.

Cai Yaobin checked twice and confirmed that all the numbers were correct!

"Damn it, have we achieved real quantum communication?"

"if not?"

"Awesome...and is this accuracy rate ready for practical application?"

"Absolutely." Kang Chi nodded, "Using this communication solution, the accuracy rate is about 99.9903%. This is actually easy to calculate."

"If you have a coin in your hand and then toss it ten times in a row, the probability of it landing heads each time is 50%, then the probability of it landing heads ten times in a row is 50% to the 10th power, which is 0.0097%. This is Error rate."

"But this solution is a bit of a waste of quantum life. 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 quantums. For example, create a block with 100 million Quantum's quantum communication chip can transmit a total of 1.1TB of data, but the cost of use is still estimated to be very high."

"It's okay, this is just the beginning." Cai Yaobin immediately comforted him, "Maybe there will be a technological breakthrough in the future?"

A technological breakthrough?

This is already top-notch black technology, okay...

Without metallic element No. 376, the lifespan of Quantum cannot be increased, and it can only be accumulated.

Ren Zhou suggested: "Can the transmission efficiency and service life be improved by introducing the ternary, multi-ary or e-ary system?"

Ternary and E-base?

Although it sounds a bit fancy, it is actually useless.

If the e-base efficiency is 1, then the m-base efficiency is e/m * ln m,

The ternary efficiency is e/3*ln3=0.9954459403,

The binary system is e/2*ln2=0.9420846927.

After doing it again and again, it is nothing more than a 5% efficiency improvement.

Kang Chi shook his head: "There is no need to waste time on this performance improvement...it is more important to find new metal elements."

"New metal elements?"

"Well, when it comes to restricting the application of technology, materials always come first..."