Chapter 159
When Chen Fan heard this, he raised his brows and said with a smile,"Zhang Yue, you just said you wanted to take a few more days off, right? Okay, then you can go out now and I will give you a whole year off."
Zhang Yue is pretty and pretty. His face fell instantly and he shook his head quickly,"It still doesn't matter. A day's rest is really nothing more and nothing less for me. After a day or two, I will be completely relaxed."
Everyone heard this. Laughed.
Chen Fan said with a smile,"Now that everyone has rested, we are going to start research on quantum computing chips. If anyone knows about this area, please let me know."
Zhang Yue was eager to give it a try and looked around. Then he said,"Let me tell you first. I am studying computer science, not quantum mechanics. Please correct me if there is something wrong."
There are big bosses in this place, especially Chen Fan. She hopes to gain knowledge she has not learned here.
Almost everyone in the laboratory has this idea. Working with a"god" like Chen Fan and being able to listen to his opinions is, without exaggeration, a lifelong blessing.
Even if they go back, as long as they write on their resume that they have worked in Chen Fan's laboratory, their status will rise several levels.
This is why so many people wanted to come here at that time.
"…..The new qubit is similar to charge qubits in terms of ultra-fast control speed, but its quantum coherence is nearly ten times higher than that of general charge-encoded qubits. At the same time, the way in which electron orbital hybridization realizes qubit encoding and control is highly versatile and has a huge impact on exploring the quantum coherence properties of polar phonons and piezoelectric effects in semiconductors.….."
Chen Fan nodded,"Okay."
The electrons in the quantum chip require little current to jump from one part to another, so its power consumption is also negligible.
If it is applied to electronic products such as mobile phones and electric cars, its use time can be extended to a level that people today cannot imagine.
It can be used for half a month or a month on a single charge. Even longer.
Chen Fan's words made Zhang Yuexi smile.
She passed!
"Chen Yuan, as far as I know in terms of silicon quantum dot technology, Hanguo Wuxing has developed the first quantum silicon chip."Someone said.
As soon as these words came out, everyone looked at Chen Fan and wanted to know his opinion.
Chen Fan said,"I don't know where you got the news from. Even if you have it, they can't break through a difficulty. Then
That is, the chip can only be started at minus 210 degrees."
He said this and smiled,"As for why, it's the homework I gave you after class."
The people here are all big names in the industry. At their level, they can still be given homework.
For them, there is a very strange and nostalgic feeling.
It's a bit like living to be 80 years old. There are also parents who say the same thing
"So, does anyone else have an idea and would like to hear it? Chen Fan asked.
Jiang Feng spoke,"Chen Yuan, who do you think is the most powerful candidate to realize solid-state quantum computing?""
This question seems useless, but it is actually very important.
Everyone was looking at Chen Fan.
Chen Fan smiled and said,"It's a semiconductor quantum dot, and the reason is very simple. Because it has good scalability and integration.
Charge qubits encoded by the occupied states of single electrons in the left and right quantum dots of a double quantum dot have many advantages and have become the most popular research direction in quantum computing research at present."
"The operating speed of the charge qubit gate can be adjusted in a wide range, reaching the frequency of ghz; secondly, the preparation, manipulation and reading of the charge qubit can be completed with full electrical control"
"Finally, the electron charge degree of freedom as a qubit can be compatible with existing information processing technology, and can use advanced semiconductor process technology to complete large-area expansion and integration.
He paused and then said,"A single-qubit logic gate control and a two-qubit controlled NOT gate can be combined control any universal quantum logic gate. To achieve universal quantum logic gate control is to achieve The most critical technology for quantum information processing. So our focus will be here next."
When the words came to light, people said,"International quantum computing research teams in electronic charge qubits such as Harvard University and Wellcome University have realized semiconductor ultra-fast universal single-bit quantum logic gates in 2019. The shortest operation is completed within 200 picoseconds."
This man is Guo Yunhao, a senior physicist who returned from studying abroad. He is also a proud man, but he is only 40 years old.
Although he is much worse than Chen Fan.
"Compared with the world's highest level of electron spin two-qubits, the manipulation speed of the new semiconductor two-qubits has been increased hundreds of times. The completion of single-bit and two-bit quantum logic gates shows that all basic quantum logic gates required for quantum computing can be realized on semiconductors through fully electrical control."
"I have no objection to focusing on this, but the question is whether it is possible to simultaneously conduct research on the preparation and manipulation of new non-doped gallium arsenide and silicon germanium heterojunction qubits?"