Chapter 1193 Sending a Letter Successfully!

Institute of Semiconductors, Jinling Institute for Advanced Study.

At this moment, everyone's eyes were focused on the uniquely shaped tubular device and the back of the man standing on the single-photon entanglement emitter, waiting for his next move.

Glancing at the time on his watch, Lu Zhou turned his gaze to the researcher standing in front of the computer and nodded to him.

"It's time to start."

"OK."

Two brief exchanges ended.

The researcher standing in front of the computer pressed the button.

It is almost the same as the scene that Academician Xue saw at the beginning. The entangled photon pairs are emitted from the single-photon entanglement emitter at an ultra-high frequency, forming a stream of information composed of single-photon pairs, and the signal lights on the quantum repeater Light up and be boosted and sent to the receiver hundreds of meters away from the laboratory.

At the same time, the traditional communication channel parallel to the quantum communication channel also releases a huge amount of data at the receiving end, which is decoded by a special decoding device based on the received quantum key.

The whole process contains extremely complex physics and informatics principles, but for the person standing next to the whole set of equipment, it is just a momentary matter.

Except for the shocked and astonished expressions of the Chinese Academy of Sciences experts standing around the computer, the ministerial leaders standing behind the old man didn't even realize that the experiment was over.

It wasn't until Lu Zhou reminded them that the experiment had been successful that their faces showed a look of bewilderment and astonishment.

The first to come back to his senses, Director Li quickly walked to the side of the group of experts, and confirmed in a hurry.

"The experiment was successful?"

Academician Gao Junwen from the Institute of Information Engineering blinked his eyes blankly, then exchanged a surprised look with his old friend next to him, then looked at Director Li and nodded.

"Undoubtedly yes... Transmitter A sends a sentence of 'hello world' and the corresponding quantum key through the traditional channel and the quantum channel respectively. As far as the result is concerned, without the key, even using our best It is impossible for advanced supercomputers to decode these two words."

"So we can assume that even if an attacker has unlimited computing resources, our cryptographic system will still be impossible to decipher...There is no doubt that this is the unconditionally secure communication technology we are looking for."

Consecutively using two sentences without a doubt to express the excitement in his heart, the expression on Academician Gao Junwen's face seemed to be unable to distinguish whether this was a dream or reality, and he praised like a dream.

"...I never expected to see such a perfect system in my lifetime."

"It's almost like a dream."

Academician Gao didn't deliberately control his volume when he said these words.

After a long time, the old man spoke.

"This is quantum communication technology?"

"Yes," Lu Zhou nodded, and said in as simple a way as possible, "As Academician Gao said, theoretically no one can intercept the information passing through this channel. For medium and long-distance communication , our technology will be absolutely safe and reliable.”

The old man nodded, but soon thought of something, so he immediately asked: "What if someone controls the repeater? For example... deploying a nuclear submarine in the Pacific Ocean."

Lu Zhou shook his head: "It's useless. The only thing a nuclear submarine can do is destroy the quantum repeater or cut the quantum optical fiber. Once the channel is destroyed and the distribution of the quantum key stops, the data transmitted through the traditional optical fiber will also be invalid. , into invalid information that can never be deciphered.”

A complete quantum key is not represented by a single entangled photon pair. When one of the entangled photon pairs collapses due to being observed, it cannot reach the next "checkpoint", and subsequent signals will also be interrupted.

In the face of such communication technology, the information sent is theoretically absolutely safe, unless someone can observe the entangled photon pairs without causing the exploration to collapse.

However, from a physical point of view, this is simply impossible.

At least, as far as the physics of Earth civilization is concerned, it is impossible.

Looking at the uniquely shaped equipment in front of him, the old man was silent for a long time, and suddenly said with emotion from the bottom of his heart.

"It's almost like magic."

Hearing this metaphor, Lu Zhou smiled and said: "If we only look at the results, any scientific research results can be included in the category of magic, especially when they are just discovered."

Facing Lu Zhou, the old man said solemnly.

"Information security has always been the most important difficulty we have encountered in the transformation of industrial informatization, not even one of them. Including quantum computers, and quantum communication technology... The impact on our society is probably no less than that Control fusion."

"I have to say thank you on behalf of the people of the whole country."

Lu Zhou nodded slightly and said politely.

"You're welcome."

“It is also my honor to be able to witness this moment.”

...

Go to Beijing.

Financial Street, XC District.

A man in a suit and leather shoes stood at the door, stretched out his hand to adjust his tie, and walked into the building with his head held high.

His name is Tony Azoff, and he is a manager from SubCom Corporation in the United States.

As a giant in the global submarine optical cable business, SubCom, Japan's NEC, and Europe's Alcatel-Lucent monopolize more than 90% of the global submarine optical cable market share.

As for why he is standing here.

Naturally, it was because of the smell of Franklin...

"Can you contact your Mr. Wang for me? I have an appointment."

Speaking fluent Chinese, Azoff showed a confident and charming smile to the MM at the front desk.

"Please wait a moment, I will contact you for you."

After waiting patiently for half a minute, a man who looked like a secretary soon came from the direction of the elevator.

"You are Mr. Azoff, right? Mr. Wang is waiting for you in the conference room, please follow me."

After speaking, the secretary made a gesture of invitation, and led him to the elevator, all the way to the conference room on the second floor.

When he arrived at the meeting room, a middle-aged man who looked slightly fat in his clothes stood up from the meeting table, smiled and extended his right hand to him.

"Welcome to Huaguo, Mr. Azov. You are here for the No. 3 Asia-Pacific Submarine Optical Cable Project, right? You have worked hard all the way!"

"Thank you." Sitting down at the conference table, Azoff took out the documents in his business bag and spread them out on the table, looked at Mr. Wang who was also sitting opposite him, and said with a smile, "Since you have already Now that we understand, let's get started."

With the increasing demand for trans-Pacific communications, the original Asia-Pacific submarine cable line has become somewhat stretched, and the construction of Asia-Pacific Submarine Cable No. 3 (APCN3) has become an urgent matter.

Long before he came to China, the communication departments of South Korea, Japan, Malaysia and other countries had reached a preliminary cooperation intention, intending to set up a committee composed of personnel appointed by multiple countries to build this APCN3.

The reason why he traveled to Huaguo this time was that his main task was to promote Huaguo to participate in this project, and to promote their submarine optical cable business to the three giants in Huaguo's communications industry.

After all, whether it is Huaguo, the United States, or other countries in the Asia-Pacific region, there is an urgent need for this submarine optical cable. Azoff can't think of any reason why Huaguo might refuse.

For him now, the question is just how to skillfully use the art of negotiation, using landing sites and communication needs as bargaining chips, to make their potential customers pay more costs to pay for their submarine optical cables.

Negotiations went very smoothly.

For communication companies, submarine optical cables are just needed, and their choices are relatively very few. Azoff managed to make the Wang Boss's face show an emotional expression without spending much time.

However, at this moment, the sound of the phone vibrating suddenly rang.

Glancing at the caller ID on the phone screen, Mr. Wang showed a embarrassed expression on his face. Although he didn't really want to interrupt the progress of the meeting, he couldn't hang up this call either.

"Sorry, I'll take a call." With a sorry expression to the manager of SubCom, Mr. Wang stood up from the conference table.

"It's okay, I can wait."

Seeing the Chinese man leaving the office, Azoff was not in a hurry, picked up the coffee on the table, took a sip, and waited quietly.

Time passed by every minute and every second.

Azoff, who had been quite patient before, couldn't help frowning slightly.

Originally, he thought that the call would end soon, but he didn't expect that there was no movement outside for ten minutes.

Just as he was wondering if he wanted to go out and look at his watch for the fourth time, the door of the conference room finally opened, and that Mr. Wang walked in from the outside.

However, this time, the expression on his face seemed a little dignified.

It was also this trace of seriousness that was completely different from before that made Azoff feel a little uneasy.

Sure enough, as if confirming his guess, that President Wang said in an apologetic tone.

"Sorry, about this No. 3 Asia-Pacific submarine cable project...we are not interested."

Azoff's eyes suddenly widened, and he almost didn't stand up from the chair.

"Wait, what do you mean no interest?"

"I'm really sorry, that's the literal meaning." Maintaining an apologetic expression, but this President Wang has no intention of changing his mind, and continued, "We have no plans to add submarine optical cables for the time being, at least not now. How about you stay Give us a call, and if we change our minds, we will contact you."

Hearing this, Azoff almost vomited blood.

What does it mean to change your mind and contact again?

He even brought the contract!

He came here today with the intention of making a deal—or at least signing a letter of intent for cooperation!

"I sincerely suggest that you reconsider! According to the current growth rate of communication bandwidth demand, only the Asia-Pacific Submarine Optical Cable Line 2 cannot meet the needs of information development in the Asia-Pacific region at all!"

Sitting opposite Azoff, Mr. Wang nodded and said without any change in expression.

"We'll think about it."

The meeting ended like this.

Later, Azoff continued to go to China Unicom and China Mobile, and visited the other two communication giants in China, but the answers he received were almost the same.

It was even worse than what he had experienced at Telecom. The latter two had no intention of discussing this issue with him at all, and sent them away without even five minutes.

His intuition told him that everything was because of that phone call.

However, he didn't understand what kind of phone call had such a great power to turn all the good situations into what it is now.

When he finally came out of the mobile headquarters building, Azoff was in a state of bewilderment, and the relaxed expression on his face at first was gone.

Is NEC or Alcatel-Lucent stealing their business?

But it doesn't seem like it.

He is only worried about one thing now, how to write this report, so that he can report the matter truthfully and make the losing streak of these three negotiations not look so embarrassing...