Chapter 1176: Decoherence of Mayorana Fermions with Quantum Entanglement

What if the electrical energy is not attenuated during transmission?
What if a computer had exponential speed and perfect accuracy?
Regarding this question, Professor Duncan Holdan once gave a standard answer. And in the fall of 2016, the physicist and two other companions won the Nobel Prize in Physics this year for "discovering the topological phase and topological phase of matter"!
Simply put, through rigorous experiments, they found that even the smallest microscopic matter can exhibit macroscopic properties and have a topological phase.
This sounds a bit difficult to understand, and to understand it, you have to understand the concept of topology.
It is well known that mathematicians often look at problems differently than ordinary people, and they are often used to seeing the essence through phenomena. Topology is such a discipline. It studies the properties of geometric figures or spaces that can remain unchanged after continuous changes in shape.
One of the most classic examples shows that to a topology scientist, donuts and coffee cups look the same because they both have a hole.
Because there is only one hole, you can turn a donut into a coffee cup through a smooth deformation process, and vice versa ... even though this may seem a little hard to understand in the eyes of ordinary people, even inexplicable, but in fact This mathematical method has found many interesting things for scholars in other fields.
Especially in the field of physics and materials, many of the amazing discoveries of the 1980s were derived from topological methods, which provided a theoretical basis.
It has just been that, although people are accustomed to applying topology to solving problems in the macro world, they have no idea whether topology can be used for subatomic particles such as electrons and photons.
Because they are all affected by the peculiar laws of quantum physics, their size, position and even morphology are in an uncertain state.
However, the Nobel Prize in Physics for 16 years gave a positive answer to this proposition.
Even the subatoms of these microworlds are consistent with topological properties!
This theory obviously has no effect on daily life, but for the field of electronic engineering, it really opens the door to a new world!
In the wonderful quantum world, these properties show amazing stability and some remarkable characteristics at a particular stage of matter. The most typical example is the topological insulator.
This characteristic, especially found in graphene materials, has directly led to the birth of SG-1 superconducting materials and carbon-based chips.
At the same time, this property also promotes the research of quantum computing.
According to the principle of quantum computers, it is mainly through the property that subatomic particles can be in different states at the same time, and stores information in a thing called a qubit. Because of this characteristic, compared with traditional computers, quantum computers can solve problems at an exponential speed.
However, the problem is that the subatomic particles that store data are very fragile. Unlike stable atoms, even slight disturbances may change its state.
It is the so-called "decoherence" in quantum mechanics-any environmental influence may cause the entangled state of the qubit to collapse!
If you want to solve the problem, you must either reduce noise, resist interference, or both. No matter which technical route is adopted, the subatomic particles must be stabilized.
This is also one of the core problems in the research and development of quantum computers.
At the same time, Lu Zhou has been studying these days ...
Jinling Institute of Advanced Research, a three-level laboratory.
The empty room that was originally used as a spare sample room is now being filled with a large number of newly purchased equipment.
These include multi-functional physical property measurement systems, step meters, vibration sample magnetometers, high and low temperature magnetoresistance testers, and in-situ freeze dryers, etc. Although not as luxurious as the lineup, it can also be said to be small. All the internal organs are complete.
In addition, in addition to these devices that are essential for the study of carbon materials, there is also a light-curing 3D printer with a maximum accuracy of 8 microns, which is mainly used to print plastic molds used in experiments.
A thumb-sized film was carefully placed in the magnetron sputtering atomic layer deposition equipment. Lu Zhou carefully compared the data on the experimental form and set new experimental parameters on the computer.
After doing all this work, he was finally relieved and hit the Enter button on the keyboard.
The green beacon lights up and the equipment in the laboratory starts to run.
Carrying the coffee, he returned to the office chair next to him and sat down. Lu Zhou glanced at his watch and was thinking about what to spend for a while of boring time. At this moment, Xiao Ai controlled the drone to drift from the side.
Xiao Ai: [Master, master! Just a moment ago! A super surprise happened! φ (≧ ω ≦ )?】
Focusing on the air half a meter in front of the small TV, Lu Zhou raised his eyelids and said something unexpectedly.
"You upgraded?"
Xiao Ai: [Hey? Do you know !! Σ (° △ °

) ︴】
Lu Zhou: "..."
Is this guy upgraded or downgraded ...
Sighing in his heart, Lu Zhou ignored it and closed his eyes into the system space.
Branch technology as the branch of system tasks, the accumulation of artificial intelligence experience and informatics experience are synchronized. Just as Xiao Ai's level rose to LV4, his informatics level also increased from LV4 to LV5.
At the moment of upgrading, you can see the dialog box prompt even if you do not enter the system space ...
[……]
[G. Informatics: LV5 (0 / 300,000)]
After confirming the changed property panel, Lu Zhou touched his chin thoughtfully.
Sure enough, as he speculated, by observing various behaviors of players in the virtual reality world, the accumulation of progress bars can be accelerated. In other words, in fact, the experience required by the artificial intelligence branch is actually a sociological experience?
However, now Lu Zhou doesn't have much thought on Xiao Ai. After entering the system space, he just glanced at his property panel and the progress bar of branch technology, and then turned his consciousness back to the real world.
Opening his eyes, he saw that the small television staring at the quadrotor had been shaking in front of him for a long time.
Xiao Ai: [Master, don't you brag about Xiao Ai? ( / ω＼ )】
Lu Zhou: "Well, it's beautiful."
Xiao Ai: [Perfunctory! QAQ]
"... It seems like time is running out."
Pretending not to see the dialog box on the small TV, Lu Zhou glanced down at the time on his watch and muttered to himself.
As if confirming his words, the signal light jumped from green to red on the instrument not far away.
Seeing this, Lu Zhou ordered immediately.
"Xiao Ai, turn on the in-situ freeze dryer."
Xiao Ai: [Received! (○ ｀ 3 ′ ○)]
Although extremely reluctant, Xiao Ai obeyed obediently.
I just do n’t know if it ’s his illusion. I always feel that the little guy ’s reaction seems to be more and more emotional ... or in other words, more and more human?
Lu Zhou also said that it was not a good thing.
In the final analysis, the way artificial intelligence processes information and the human brain are two completely different sets of rules. One is that logic determines emotions, and the other is that emotions govern logic.
Maybe its existence will give birth to a brand new species?
Of course, it's too early to say this.
As its "guardian", Lu Zhou can only say that he has fulfilled his responsibilities and has taken a closer look.
At least as far as the current performance is concerned, the little guy is quite obedient and obedient. He plays the role of a little helper in life and research, and absolutely obeys his orders.
My worries seem a bit redundant?
With the help of Xiao Ai, Lu Zhou transferred the samples from the magnetron sputtering atomic layer deposition equipment to an in-situ freeze dryer, lyophilized the carbon-based chip samples, and then applied the metallographic microscope to the film. The chip was carefully observed, and the experimental data was recorded on a notebook.
Now he has more than 30,000 points. According to the price code issued by the system, if he wants to redeem a full set of quantum computer technology, he needs 120,000 points.
In fact, this estimate actually contains a lot of water.
If the problem is split and the unsolved problems are raised on the basis of those that have been solved by the academic community, the points consumed can be reduced by more than five times!
So far, he has spent 20,000 points to overcome several key bottlenecks in the research, and the rest is his own understanding of carbon materials, Mott insulators, and Mayorana fermions. , By consulting some previous research results, and completing some extension work based on this.
For example, a topological insulator carbon material containing Mayorana fermions and a superconductor layer with a single atom width is superimposed on the premise of not affecting the stability of the Mayorana fermions.
In this particular topological phase material, subatoms can be protected.
In other words, the qubits formed under this topology will not change due to some small or local interference. It is far more stable than ordinary qubits, allowing our quantum computing to handle the questions we want to answer in a more accurate and efficient way ~ EbookFREE.me ~ these jobs have saved at least 100,000 points for Lu Zhou .
It is also these tasks that gave him the opportunity to use points on the blade.
This is also a manifestation of the saying "knowledge is power".
Carefully completed the last step of all experimental work, Lu Zhou placed a layer of translucent graphene sheet as thin as a cicada on a circuit mold prepared in advance.
It was as if looking at a perfect work of art, with a sincere smile on his face.
"The performance tests are as expected."
"The appearance is impeccable and perfect!"
"... Sure enough Mayorana Fermion is the perfect choice to make a quantum computer!"
The rest is to verify whether the hard work these days and the 20,000 points he spent are worth it.
Pressing the power button, Lu Zhou's heart almost touched his throat.
It was almost an instant.
At the same time he pressed the button, a pre-set program completed the operation on the film. The signal processed and output by the logic circuit is transmitted to the display screen, and a line of clear characters is quickly displayed on the display screen-
[HelloWorld]
Looking at the beating characters on the screen, Lu Zhou's heart suddenly burst into joy, his fists clenched tightly, and he almost did not jump up in excitement.
"Success!"
Subconsciously shouted the excitement in his heart, and as a result, Lu Zhou was taken aback by his actions, and hurriedly checked the operating status of the equipment.
When he saw this layer of "thin-film" chip running steadily, he did not cause the "collapse of the qubit entanglement state" because of his cheering of more than eighty ten dollars, and Lu Zhou's face finally showed his heartfelt relief Smile.
It seems this time ...
It really did!