Fuda,

Xu Mang stayed alone in the condensed matter physics laboratory, and started his research with graphene, and now he is quite miserable, deputy director of the Department of Physics, professor of theoretical physics, but there is no assistant around him, let alone an assistant... Even the push switch is done by itself.

This deputy director,

This physics professor,

It's really embarrassing in front of you!

"Ugh..."

"What a tragedy. Xu Mang sighed, glanced at the empty laboratory, and pulled out the cold in his heart, although many things were done by himself before, but the experiments were done by others, after all, he was engaged in theory, and the result... Now I have to do my own experiments.

In fact

It is not difficult to prove the coherence time of graphene qubits, as an authoritative figure in the field of graphene, Xu Mang has almost thought of a corresponding method last night, the difficulty is how to use graphene to build complex quantum circuits.

According to conventional tunable qubits, the current loop generates a small magnetic field that causes electrons to jump back and forth between materials, which in turn causes the qubits to switch states.

This is the structure that Xu Mang inversely deduced from the quantum chip given by Deputy Director Hao Ren - Josephson junction, and the insulator is sandwiched by two materials.

But

In reality, Xu found that the energy consumption of this form of qubit state transition is very high and may lead to other problems.

How to fix it?

Xu Mang fell into a contradiction, and with the help of the materials science database, he selected a two-dimensional magnetic material, Van der Waal, which is only atom-size thick and can be stacked on top of each other like stacked blocks to form an electronic system.

Pity... Xu looked at the paper on van der Waal's materials, which are basically used for magnetism, and the research on quantum circuits was almost blank, so Xu could deduce that van der Waals materials are not temporally coherent.

The train of thought was a little broken, and then it was like diabetes insipidus.

Oh, my God!

Isn't that funny?

Xu Mang's tortured scalp was numb, and he originally thought it was quite simple... Only to find out when you really get started, it's as difficult as a dog!

"Hello?"

"What are you doing?" Xu Mang received a call from Chen Xi and asked with a confused face: "If you ask about feelings or other things, please call your Sister Xiaoman, she is an emotional expert, specializing in helping couples who are lost on the road of emotion to guide them." ”

“...”

"Brother Xu Mang, don't make trouble!" Chen Xi said embarrassedly: "If you talk to Sister Xiaoman, I'm afraid you will be killed by her." ”

Xu Mang: ???

It's not like that,

After all, you're the first person to call her sister.

Wrong!

This kid... Shouldn't you break up with Guo Tianmei?

"You..."

"You shouldn't break up with Guo Tianmei, right?" Xu Mang asked in horror, "You... If you really break up, you have to compensate others, at least Guo Tianmei changed her mind for you and went to Jida to study. ”

Chen Xi sighed and said helplessly: "I haven't broken up for the time being, but I had a big fight with her today." ”

"What are you arguing about?" asked Xu Mang.

"Sesame mung beans are a big thing, but they quarreled while talking, Brother Xu Mang... Have you ever encountered a time when Sister Xiao Man is unreasonable?" Chen Xi asked curiously, "How did you solve it at that time?"

"Hehe..."

"Of course it's to beat her!" Xu Mang sneered and said viciously: "Don't you know what kind of character I have? Don't talk about one Yang Xiaoman, the three Yang Xiaomen dare to be presumptuous in front of me, and they will also beat her together, don't look at your sister Xiaoman, who usually shows off her martial arts, at home... I am the emperor!"

At this point,

Xu Mang became very interested and began to brag about his glorious history to Chen Xi.

"Usually I let her and give her a little face, but at home... I asked her to go east, she didn't dare to go west, let her go left, she didn't dare to go right. Xu Mang said with an arrogant face: "She wanted to hug me last night, and I told her seriously, please go away!"

"Listen!"

"What righteous words!" Xu Mang's vanity was greatly satisfied, and he said incomprehensibly: "Don't tell you these words I told you just now, otherwise... She's going to die of shame. ”

Tatsuki:( ̄△ ̄;)

Just...

What happened?

Was Brother Xu Mang too strictly controlled by Sister Xiaoman, and he was hallucinating?

"I..."

"Brother Xu Mang?" Chen Xi asked cautiously, "You haven't considered breaking up?"

Parted?

Belch...

Xu Mang couldn't help touching his neck, and said with a smile: "Your little sister is very good." ”

Tatsuki opened his mouth and did not speak.

soon

The call was interrupted, and Xu Mang's expression gradually became serious, he was worried... Tatsuki, this kid leaked out.

Never mind

Exercise for an extra hour and everything comes back.

Returning to graphene, Xu Mang looked for materials again, and finally spent an hour, Xu Mang chose hexagonal boron nitride to clamp graphene, through his own careful calculations, when hexagonal boron nitride clamped graphene, it can make the qubits have ideal ballistic transmission, and there will be no scattering.

"Huh?"

"It's... It seems that there are not enough qubits!" Xu Mang frowned, through the analysis and calculation of experimental data, this qubit is pitifully few, only a mere five qubits.

What to do?

If this graphene quantum chip is finally successful, it will hold only four qubits, which means... I'm going to make a thousand chips myself, just kidding ... It will take at least 100 million years to integrate 800 chips!

In desperation,

Xu Mang made a phone call to Hao Ren, deputy director of the Supercomputing Center of the Academy of Sciences, to ask about the scaling of quantum chips.

"Hello?"

"Director Hao?" Xu Mang asked with a smile, "Yes, yes, yes... It's me, what is that... I'm about to work on a quantum chip. ”

Hao Ren: ???

I...

This...

How long has the project been established?

This has led to the development of a chip with 4,000 qubits?

"Professor Xu?"

"You... You're not kidding me, are you?" Hao Ren asked in horror, "This has been successfully developed?"

"No, no, no!"

"Don't get me wrong... It's just a thousandth of what happened. Xu Mang said embarrassedly and politely: "The results I obtained through experimental calculations using graphene are similar to the samples given to me by the Academy of Sciences, but... There are only four in the number of qubits. ”

Hearing Xu Mang's words, Hao Ren was going crazy, although it was only four qubits, but... You must know that Professor Xu started from scratch, relied on a sample chip, and then made a quantum chip by himself?

Hao Ren had heard that Xu Mang's research speed was very fast, and he came out as soon as his eyes were closed, who knows... It's getting to this point.

"Professor Xu?"

"Can you send the finished product over in the future?" Hao Ren asked seriously: "I first heard that the use of graphene can be developed into quantum chips, we have considered it before, but... How to solve coherent temporality?"

Xu Mang said solemnly: "I have no comment, and the finished product cannot be given to you, only relevant data can be provided." ”

“...”

"Okay. Hao Ren said helplessly: "Then please send me a copy of the data." ”

"Yes!"

"But... Can you tell me how to solve the problem of quantum chip qubit scaling?" asked Xu Mang.

"Voltage control. ”

"According to our findings, voltage control can scale qubits while eliminating crosstalk issues. Hao Ren said: "But... Whether this technology can be used on graphene quantum chips is debatable. ”

"That's right!"

"Voltage control reduces the lifetime of the qubits. ”

Yes?

Want to reduce lifespan?

Xu Mang frowned, this is indeed very unpleasant, even if the qubits are amplified to a limit, the result can only take one minute, which is equivalent to nothing... It seems that I need to think in other directions.

Hang up the phone,

Hao Ren waited anxiously for Xu Mang's data, and ten minutes later... Hao Ren received an email.

Open it

I read it immediately, and in just a few minutes, I was impressed by Xu Mang's earth-shattering operation.

Really!

And sure enough, it was!

Deputy Director Hao Ren guessed Xu Mang's R&D experience, in fact, this is similar to the 20 qubit chips developed by the Academy of Sciences, using a superconducting circuit mode, but in a strict sense, the chip developed by Xu Mang is not a quantum chip in the real sense, everything depends on calculated data.

But for Hao Ren, this is enough.

He...

How, exactly?

moment

Hao Ren picked up the landline at hand and dialed a number, but hung up in a hurry the next second.

You can't put pressure on Professor Xu!

...

night

Eventually, it came,

Xu Mang had just finished taking a shower, lying on the bed, facing the problem he encountered today, how to improve the qubits of the graphene quantum chip he developed, and how to form a complex superconducting circuit mode.

"Huh?"

"Big fool?"

"I'll discuss something with you. After Yang Xiaoman took a bath, while wiping his hair, he said to Xu Mang casually: "Do you have time the day after tomorrow? ”

Xu Mang: ???

What?

Accompany you to pretend to be compared?

"Huh?"

"You... What do you want to do?" Xu Mang asked curiously, "I've been quite busy lately... The quantum chip has been stuck for a week, and at the moment it has only completed a breakthrough from zero to one, and it is not even a breakthrough, I really don't have time. ”

Yang Xiaoman pouted, she knew that Xu Mang had been very busy recently, and he was worried all day long, but... The biggest enemy in his life, there is also a group of hateful pretending criminals, who are waiting for him to get out of trouble.

What can I do?

"Husband~"

"Squeeze out a little time for people!" Yang Xiaoman walked to Xu Mang's side, shook his hand vigorously, and pleaded with a pleading face: "Even if you are busy... There is still time for squeezing. ”

"Cut!"

"Are you so flat, can you squeeze it out?" said Xu Mang with a look of disdain.

Yang Xiaoman: (* ̄〈 ̄)

Toast without eating and drinking,

The old lady fulfills you!

After a violent beating, Xu Mang was a lot more honest, shrunk his head, and asked cautiously, "What is the matter with Xiao Man?"

"Don't ask!"

"Anyway, you accompany me to the Maldives. ”

Words fall,

Xiao Man showed a fierce light: "After you get there, you only need to do one thing!"

"Loading than !!"

......