Chapter 519

Ai Liang waved away after sending the information.

Seeing that Gu Lu's side had just finished the first phase of the task yesterday, and now he was already in full swing in the preparation for the next stage of work, Ai Liang was obviously stimulated again.

Even the fatigue brought by staying up all night has alleviated Ai Liang's body a lot.

Now Ai Liang just wants to work!

Come on, 007!

Destroy me to your heart's content!

With this mentality, Ai Liang trotted back to the laboratory non-stop.

Gu Lu's side.

The meeting lasted a full morning.

Referring to the materials and data sent by Ai Liang, everyone discussed for a whole morning, and finally determined the general framework of the experimental plan.

There are two major difficulties to be solved in this problem, one is the carrier relativistic properties of carbon atom materials, and the other is the zero-gap band structure of carbon atoms in a single layer.

So, the third group was again divided into two groups.

The two teams are still led by Gu Lu and An Yu respectively, and the division of personnel is still the same as before.

An Yu led the team to solve the problem of the relativistic properties of carbon atomic materials.

Gu Lu, on the other hand, is to lead the team to eliminate or reduce the influence of the zero-gap band structure of a single-layer carbon atom on the complexity of the qubit structure in some way.

An Yu closed the material in front of him and pushed the eyes on the bridge of his nose, "Then, today's meeting is held here, the situation of the grouping is like this, as for the specific tasks that each person is responsible for, we will make detailed arrangements before starting work in the afternoon." ”

"The project we are working on is much more difficult than the previous one, but we still have to get it done in the shortest possible time. So, in the coming period, you may not spend as much time as you did in the previous month, and overtime will become our norm. ”

Everyone has long been mentally prepared, so the mood is very calm now.

For everyone, in this project team, where time is more precious than money, it is already very satisfying for them to live a life of clocking in and out of office on time from 9 to 5 for about a month without working overtime.

As everyone knows, the rest of the research group is already envious of them to the point of almost separating the plasma wall.

At the same time, the previous slightly fishy work state made everyone unconsciously have a sense of guilt.

Now, they're finally going to work overtime!

Although it is foreseeable that the future will not be easy, but inexplicably, everyone is a lot more relaxed in their hearts.

An Yu crossed his fingers and opened his thin lips lightly, "We are very short of time, and the experimental work will start immediately in the afternoon, I hope you will build up 100% momentum, come up with 200% research level, and strive to make experimental results again as soon as possible, and complete the conclusion of the research group!

"Clear!" everyone replied in unison.

"Okay!" An Yu nodded, "It's not early, let's go to lunch first, and gather in their respective laboratories at half past one in the afternoon." ”

The members of the research group walked out of the laboratory one after another with their own things.

"Everyone's enthusiasm is very high!" Looking at the backs of everyone leaving, Gu Lu turned his head and smiled.

A smile appeared on An Yu's face, "Yes, I just hope that when they stay in the laboratory at 1 or 2 o'clock in the morning, they won't complain!"

............

Afternoon.

In the materials processing laboratory, a total of six research team members, including Gu Lu, gathered in this laboratory.

The task of Gu Lu and his team is to eliminate or reduce the influence of the zero-gap band structure of carbon atoms on the complexity of qubit construction.

What is a zero-gap band, or what is the reason for the occurrence of a zero-gap band?

This is because the electrons of a single free atom occupy the atomic orbital, forming a discrete energy level structure. If several atoms are assembled into molecules, their atomic orbitals undergo a separation similar to coupled oscillations. This creates molecular orbitals proportional to the number of atoms.

When a large number of atoms are combined into a solid, the number of orbitals increases dramatically, and the difference in energy between orbitals becomes very small. However, no matter how many atoms are gathered together, the energy of the orbital is not continuous.

These tracks are called 'energy gaps'.

The difference in the conductivity of solid materials is closely related to the 'energy gap'.

Common metal conductors, such as copper, iron, etc., because the "energy gap" between the conduction band and the valence band is very small, it is easy for electrons to obtain energy at room temperature and jump to the conduction band to conduct electricity.

Insulator materials cannot conduct electricity because of their large energy gap, whereas semiconductor materials can conduct electricity as long as they are excited with the right amount of energy because they are located before the two.

It can be said that the existence of zero-gap energy bands is one of the important reasons for the electrical conductivity that graphene materials can achieve.

But......

There is a question in front of Gu Lu.

That is the size of the zero-gap energy band of graphene semiconductor materials.

Under normal circumstances, the zero-gap energy band of graphene materials is about 2.5 electron volts.

However, if you want to realize the simple construction of qubits, the number of 2.5 electron volts is too small.

In order to avoid qubits that happen to appear in the zero-gap band, which makes the design of the qubit structure more complicated, the value of the zero-gap band should be as large as possible!

For example, increasing the zero-gap energy band of graphene to 5 electron volts can greatly reduce the impact of the existence of the zero-gap energy band on the structure of qubits.

However, in this case, there is another problem in front of Gu Lu.

Increasing the value of the zero-gap energy band of graphene can indeed achieve a simple qubit structure, which is not wrong, but Gu Lu obviously can't do that.

Because once the size of the zero-gap energy band of graphene is increased, especially from 2.5 electron volts to 5 electron volts, it will obviously change graphene from a "semiconductor" to an "insulator".

The front has been raised.

Once the zero-gap energy band is too large, it is difficult for the electrons in the material to jump to the transfer band.

If the electrons cannot jump to the band, the graphene material loses its conductivity.

There is such a question in front of Gu Lu.

The zero-gap band should not be too small, as it will make the construction and design of the qubits extremely complicated.

However, the zero-gap energy band should not be too large, if it is too large, the electrons cannot jump, and the graphene material loses its conductivity.

At first glance, this is similar to the situation encountered by Gu Lu and others on the previous topic of net nuclear spin influence.

But unlike that topic, this time, among the two obviously contradictory points, there is no balance point for Gu Lu to find.

Gu Lu can only use some other way to ensure the simplicity of the qubit structure while still maintaining the conductivity of the graphene material itself.