In a cage, a single atom exhibits all the properties of a quantum molecule: spin, monoatomic matter waves, superposition states of monoatomic electrons, monoatomic Wheeler delayed selection, and so on. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Cooling atoms is to reduce the speed of atoms from a few hundred meters per second to a few meters or centimeters per second.

The principle of laser freezing atoms is mainly based on two points: first, the atom at a certain energy level will absorb the photons that resonate at the natural frequency of its energy level until the atom undergoes an energy level transition. 2. According to the Doppler effect, when the atom travels against the light, the frequency of the laser will increase correspondingly, and when it travels along the light, the frequency corresponding to the laser decreases.

If the atom is compared to a train, then the nucleus is the locomotive, the electrons are the train car, the laser blows the train like a strong wind, and the wind carries photons like ghost passengers, attaches to the train, and then leaves. In strong winds, the train keeps decelerating until it slows down to a very low speed, and at extremely low temperatures, it can capture these atoms.

As long as the frequency of this laser beam is slightly lower than the natural frequency that can be absorbed by the atomic train, under the Doppler effect, the frequency of the oncoming laser will increase the photon attachment discrete, and the frequency of the downwind laser beam will decrease.

Oncoming ghost passengers have a discount on their fares and start getting on and off the bus, while ghost passengers who come with a tailwind have an increased fare and don't have a chance to get on the bus.

This train only absorbs oncoming ghost passengers, ignoring passengers in the same direction, which is the most basic principle of laser cooling atoms. Of course, no one will ride on this kind of train in reality.

This is the principle of optical syrup deceleration of atoms, as long as three pairs of laser beams are added to space, the speed of the atoms will slowly decrease in six directions in three-dimensional space.

This is only the first step, Zhu Cheng felt a cold sweat when he completed this experiment, and his cooling only reached 240μK, which is the Doppler cooling limit! And the lowest temperature on Earth can reach the level of 40 μK.

If you want to make a quantum computer, you have a long way to go!

After doing the experiment of cooling atoms, his head is bigger, this experiment is still the most basic step, although this step slows down the atoms, but the dense atoms, all crowded together, he wants to capture a single quantum is even more difficult. There's a whole bunch of problems waiting to be solved.

The winger's return to China went smoothly, and he received a call from Heim, the winner of the funny Nobel Prize, who actually called him at this time, which means a lot! Although his status in the highest scientific circles is low, he is also a Nobel laureate!

This represents another step forward for Zhu Cheng's vision of the World Science Center! Although it is small, as long as you move forward steadily, there will be a moment to reach the other side!

"What is Mr. Zhu Cheng's salary?" Heim's first sentence reveals his true nature, greed for money. Like a dragon who likes silver glitter, he doesn't lack money, he just wants to make money!

Talking about money in the scientific research circle is actually a very sad problem, and some projects are greedy for ink can still support experiments, and there is still a balance in the end. Some projects tighten their belts and are still poor, and maybe they have to add some of their own.

"Eating meat and drinking soup or watching from the sidelines depends on your own projects and results." The winger replied with a smile, and Haim was refreshed when he heard this, because the graphene he studied was physics, and the biomimetic materials he studied were also the top biology disciplines of Cree. This determines that if he cooperates with Cree, he is likely to be a meat-eating corner!

"You wait for me in Shanghai for two days, and I'll be there later." Heim decided to go over and have a look, he didn't say what his purpose was, just to go on a tour. Originally, as a Nobel laureate, he should have attracted much attention. But because of his embarrassing academic status, he paid less attention here, successfully got a visa, and flew to Shanghai.

The meeting of the two people in a century-old Kinmen restaurant in Shanghai originated from the opening of the city, and after a hundred years of cultural integration, the dishes are acceptable to both Chinese and Westerners. The quaint and elegant Italian style decoration, and the winger entertains Haim with the signature dish of the Golden Gate Restaurant, Buddha jumping over the wall, a cup of soup rich in ingredients, sea cucumber, shark fin, abalone. Swallow it and have a lingering aftertaste.

Heim pulled out a document from his briefcase and handed it to the winger. With a smile on his chubby face, he said, "You can see first that this is my latest research, another direction of bionic technology, trapping." ”

Haim is a very keen person, graphene, which was very popular a few years ago, he took a unique approach and used tape to glue out graphene with a thickness of only one atom! And now the hot quantum computer, he is eyeing it again! He had found an excellent way to trap the atoms, and that was to trap!

"The Venus flytrap is a perennial herb with regular prickly hairs on the edges of its leaves, like the eyes of Venus, named Venus Flytrap, and is the same carnivorous plant as its distant cousin, Nepenthes, which secretes nectar to lure insects, and then closes its leaves to trap the insects so that they cannot escape."

Heim introduced his proposal, which he thought was promising, but unfortunately the winger was a biologist and he didn't know the purpose of the thing.

"To capture monoatoms! Look for something that atoms like to get close to, and ......"

The winger shook his hand and motioned for Heim to stop. said: "I don't know much about physics, go back and communicate with Zhu Cheng." "He refuses to talk about areas he is not familiar with, has no proven propositions, and jumps conclusions easily, which is not in line with his character. The two of them had a great conversation about the Nobel Prize! For example, Marie Curie's family, whose family is a Nobel Prize winner, Bohr and his sons, and other secrets, were learned from Heim.

Full of wine and food, the two of them stepped on the No. 10 warhead, for this silver-white vehicle, Heim was envious, in the Netherlands is not allowed to self-driving cars on the road, although the relevant laws and regulations are still being discussed, but the No. 10 warhead into the Netherlands is still very early.

"This is the No. 10 warhead that shines on the WRC? Terrible! ”

Heim was talking about this year's Cree team's stellar performance in the WRC, which is currently top of the standings. Each division is a winning vehicle, and Ye has set off a trend of No. 10 warheads all over the world.

"Let's hurry."

The No. 10 warhead is running on the road, and Haim is also the first time to enjoy the benefits brought by this kind of automatic driving, running through the highway at high speed and silently, even in the rest area, it will be charged all the time to ensure battery life, which deeply calms Haim's perception. The endurance exceeded his expectations.

"Didn't you say 500 km range?" Heim asked, stunned.

The winger was dealing with the biology lab and didn't pay any attention to his question. Upon reaching the Gemini Tower, Heim was a little intimidated by the height of the skyscraper, the same height as the clouds, with the spire above the clouds!

"Is this the tallest building in the world, the Gemini Tower?" Heim muttered to himself, more than expected, the silver-white glass façade, the reflection of the sunlight dizzying him.

A Nobel Prize winner should be very knowledgeable. It's a matter of asking, which doesn't fit his identity at all! The winger complained silently, which was mainly related to Heim's dislike of going out, especially after winning the award.

In addition to that aura, he is actually a very ordinary person, and when he sees something he has never seen, he will make a fuss; When you change jobs, you will care about salary, benefits, and so on.

"Alright, let's go up."

Zhu Cheng was skeptical of Haim's claim that cold atoms were trapped. Fortunately, the book in the library, "Quantum History", also has a solution. He doesn't care about the idea of capturing a single atom! It's just that Zhu Cheng thinks that this person can be set as a benchmark! In ancient times, there were thousands of dollars to buy horse bones, set a benchmark, and there will always be people who come to Cree's science and technology center!

"Well, the salary package can be lowered by one level with reference to the treatment of wingers. Five insurances and one housing fund, paid leave, marriage leave, maternity leave, year-end bonuses and patent royalty sharing and other benefits, also refer to the winger. Zhu Cheng set a standard for Heim, after all, he is a Nobel Prize winner, and he must be given a certain amount of respect and benefits.

The two of them left the office, and Heim asked weakly: "What is the standard for your treatment to be downgraded?" How much money can you make in a year? ”

"I don't know, my wife is in charge." The winger replied.

By the time Heim really understood the salary and benefits, he was completely relieved, and it was much better than when he was a professor! Soon Zhang Qingyu came out with a residence permit and handed it to Haim. The time limit is 3 years, and if it expires, you can reapply.

The winger returned to China without participating in any activities, attending any social gatherings, and not accepting any visits, and quietly carried out superbug-related experiments in the laboratory. As research deepens, the human stem cells they want to be immune to all viruses are getting closer and closer.

Zhu Cheng often takes Lilia to an office, she has completed all the extraterrestrial biological experiments, and now is the time to integrate into human life.

For Lilia's future, Zhu Cheng can only take one step at a time, and he doesn't know the reason why Trest gave him this gift, at least when he is studying biology, there is nothing special.

It was only when Lilia began to study that Zhu Cheng completely understood the horror of this Lilia! I completed the basics in a few days and continued to accelerate the pace of learning.

The teachers are all changed every few days! Her learning speed exceeded Zhu Cheng's expectations. But in the earth where brain technology is relatively weak, I don't know what is in that little head!

Is it related to the long-term freezing of such a high learning efficiency? Zhu Cheng was a little curious. He decided to ask Treist.

ps: The experimental diagram of optical syrup is in the group file, welcome all book friends to join the group: Readers in the library: 133708894. (To be continued.) )