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Chapter 95 Optical Quantum Computers and Superconducting Circuit Quantum Computers

Xia Kingdom, within the first ring of the capital.

The chairman of the council looked at Fang Xu in front of him solemnly.

"Academician Fang, were you talking about the Quantum Computer Supercomputing Center?"

It's not that he doubts it, but that Xia Guo has been studying quantum computers since a long time ago.

Some impressive results have also been achieved in the laboratory.

For example, Chapter Nine.

As a prototype optical quantum computer with 76 qubits, Jiuzhang has received numerous praises.

With its nine-chapter quantum computer, Xia State even became the second country in the world to achieve quantum hegemony.

But the actual situation is not so optimistic.

Jiuzhang quantum computer does not use general superconducting circuits, ion traps or semiconductor chips, but opens up another path, treating photons as qubits and manipulating photons to achieve calculations.

But this is a tricky way.

At least for now, optical quantum computers do not have the potential to become a universal quantum computer.

The reason is very simple. Photons have good coherence and long coherence time. This is the advantage and trick of optical quantum computers.

But why is the correlation good?

Quite simply, the interaction between photons and the environment is extremely weak.

This also led to another consequence.

It is difficult for humans, at least for now, to precisely control photons.

This also created a very embarrassing situation.

It does not enable universal quantum computing.

In other words, it cannot be programmed and can only perform calculations on specific projects.

On the classical mathematical algorithm Gaussian Bose sampling, the computing speed of Jiuzhang computer has reached an extremely terrifying level, but for other projects, it has no effect at all.

As a project that Xia Guo has devoted a lot of energy to research, the Chairman of the Council is naturally aware of the shortcomings of Jiuzhang and the difficulty of realizing a universal quantum computer.

Therefore, Councilor Li expressed his doubts about what Fang Xu said.

Faced with the Chairman's question, Fang Xu lightly shrugged: "Chairman, don't ask me, I don't know anything about this stuff."

"You can find someone to verify it. These are Professor Lu's original words."

After pondering for a moment, he added softly: "In addition, he also said that the quantum supercomputing center will play a decisive role in the future of Xia State."

The chairman's expression suddenly became serious.

"Okay! I get it!"

"In this case..." A trace of determination flashed in Congressman Li's eyes, "Let the construction team start construction according to the drawings, and various equipment and parts will be produced first."

"As for verification, I will go to the Academy of Sciences in person tomorrow!"



Xia National Academy of Sciences.

As a master in the fields of quantum computing and artificial intelligence, Mo Zeyang was staring at the computer screen in front of him solemnly.

When the researcher on the side saw this scene, he couldn't help but smiled bitterly and shook his head: "Academician Mo, are you still struggling with superconducting circuit quantum computers?"

The researcher's voice interrupted Mo Zeyang's thoughts.

He turned his head and glanced at the researcher standing next to him looking at the computer screen, and frowned slightly: "Of course."

The bitterness in the researcher's eyes became more intense, and he sighed softly: "Academician Mo, Xia State's funding for quantum computers is getting less and less now."

"Since the solar crisis, most of Xia's scientific research funding has been given to Professor Lu Yongchang."

"In addition, part of the funds for the original nine chapters will be divided, and the funds we have on hand are already..."

The researcher was silent for a while and then said again: "How about we go study optical quantum computers?"

"no!"

Mo Zeyang said categorically: "Superconducting quantum computers are definitely the direction of universal quantum computers in the future!"

“Only superconducting quantum computers can achieve artificial intelligence!”

"But, we have no funds!" The researcher sighed heavily, "Academician Mo, look at how many people have chosen to leave..."

Mo Zeyang's face darkened.

"I...just wait a little longer. Maybe I can solve this circuit architecture problem."

Mo Zeyang's voice was full of unconfidence.

“Tuk-tuk-tuk!”

There was a knock on the door.

Mo Zeyang turned his head and looked in the direction of the door, and then said softly to the researcher on the side: "Go and open the door and have a look."

Looking at the researcher's back walking towards the door, a trace of doubt flashed in Mo Zeyang's eyes.

At this time, who would come to their "poor place"?

"President?!"

"Why are you here?!"

The researcher's exclamation made Mo Zeyang freeze on the spot.

Then, a familiar face appeared in front of him.

"Academician Mo?" Councilor Li said with a smile, "Suddenly coming to see you, I shouldn't have disturbed you, right?"

Mo Zeyang hurriedly stood up from his chair and looked at Congressman Li with a cautious expression: "Chairman, you...sit down."

Seeing the Chairman sitting down, Mo Zeyang looked a little more relaxed: "Chairman, you came to me suddenly because of..."

The chairman smiled and took out a USB flash drive from his pocket.

"Here, look at the architecture diagram inside."

Mo Zeyang took the USB flash drive with a puzzled look on his face and inserted it into the office computer.

The file was large and he waited for a long time before opening it.

The moment he saw the detailed architectural diagram, Mo Zeyang's expression changed slightly!

"This is... the architecture diagram of a superconducting circuit quantum computer?" Mo Zeyang's voice was trembling, "Where did you get this from?"

"How's it going? Is this thing reliable?"

The Speaker did not answer Mo Zeyang's question, but asked softly.

Mo Zeyang fell into silence.

After a long time, his voice was slightly hoarse and he said: "Senior Councilor, I...I don't know."

"Huh?" Councilor Li raised his eyebrows slightly, "Academician Mo, you are a master in the field of Xia Guo's superconducting circuit quantum computers. Can't you tell?"

Mo Zeyang slowly shook his head, with a bit of confusion and shock in his eyes: "My research has not reached this point yet..."

After speaking, he took a deep breath and said with firm eyes: "However, I can responsibly tell you that this architecture diagram solves a difficult problem I am studying recently."

The chairman looked serious and nodded slightly: "Okay, I understand."

Seeing the chairman of the parliament lost in thought and no longer speaking, Mo Zeyang felt as if his heart had been scratched by a cat.

After struggling for a long time, he couldn't hold himself back and asked: "Senior Councilor, can you tell me who made this architecture diagram?"

Upon hearing Mo Zeyang's question, a faint smile appeared on the corner of Congressman Li's mouth, his lips moved slightly, and he announced a person's name.

"Professor Lu?!" Mo Zeyang was shocked, "I heard that he is not from the physics department?"
Chapter completed!
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