Shulou(Shulou.com)11/24 Report--

Superconductivity at room temperature and atmospheric pressure is really big this time. Not only connected to the hot search in the country, quickly out of the circle set off public discussion.

The price of lead apatite was also quickly hyped within 24 hours.

And scientists in the field of physics immediately launched a global resurgence operation.

On Zhihu, a respondent revealed that an experimental team from Anhui had been exploding the liver for more than ten hours and was trying to reproduce the results. The amount of attention attracted by the moment was so great that even foreign friends were attracted.

Interestingly, because the synthesis steps in the paper do not look complicated, some foreign netizens really prepared to "hand-rub superconductors" and purchased a wave of raw materials overnight.

The eldest brother, who is an engineer of the aerospace company, revealed: the experiment will begin tonight! 2-3 days to see the results.

Even Andrej Karpathy, co-founder of OpenAI, was attracted and watched with likes in the front row.

This wave really overshadowed the limelight of the big model.

In the words of netizens, the reason why the South Korean team's research has set off such a "recurrence craze" in the global reproduction experiment is too simple:

It can be reproduced simply in the high school lab (if the paper is true).

Among the two papers hotly discussed on arXiv, one gives a detailed process on how to prepare LK-99 superconductors.

It is roughly divided into three major steps:

Synthesis of Pb (SO) O from chalcopyrite

Synthesis of cuprous phosphide crystal Cu

Generation of normal temperature and atmospheric pressure superconductor Pb (10Mel x) Cux (PO4) 6O

If you follow this method, some netizens will estimate:

In the case of complete materials and equipment, LK-99 materials can be synthesized in at least 34 hours.

(domestic and foreign "contestants" are working overtime, as if they want to be the "first person" [dog's head squinting])

For example, on the domestic player side, a netizen named "Semiconductor and Physics" began to broadcast the experiment live, and released the experimental steps one by one.

This is the "Anhui team" we mentioned above, who stayed up late from July 26, and immediately attracted a large number of netizens to watch after the post was released.

Here are the experimental steps shared by this netizen.

The first step is to prepare the synthesis of Cu-P, mixing copper and phosphorus powders in proportion in a crucible.

The second step is to Cu the tablet.

The third step is to seal the mixed powder in a sealed tube per gram of 20cm, then pump it with a vacuum pump until the absolute pressure is 10-3torr (about 0.13Pa), vacuum and seal the tube.

Finally, put it in the muffle furnace and it will take about 3 days to cook.

After the synthesis of chalcopyrite, cuprous phosphide crystals need to be synthesized in order to form the "room temperature and pressure superconductor" mentioned in this paper.

As soon as we could find out, the post repeating the experiment was quietly deleted. This move also attracted many netizens to eat melons, and Zhihu even had a special topic for discussion.

To this, some netizens think that it is very likely that it is a matter of discipline, and the general laboratory will have some requirements for confidentiality.

Although the hot posts are gone, there are still many netizens who have tried the law, saying that they are also engaged in reproduction.

This is not, bilibili popular science district well-known up owner "Zhenfeng Dance for Nine days" shouted that the words are already in preparation! He also said that he would take a picture of the whole process of the experiment.

On the other hand, overseas "contestants" also began the experiment non-stop, live broadcast the whole experiment progress on the Internet in real time, and created a special topic for the experiment:

MeissnerEffectOrBust .

However, he is an amateur and has just begun to prepare basic equipment, which should not be as fast as that of a professional laboratory.

For example, on the first day, in addition to preparing the infrastructure, this brother was waiting for the arrival of PbO and Pb.

In a day and a half, the goods have basically arrived, and the Cu delivery is still in progress. It is estimated that it will arrive this Friday or Monday.

The latest development is that my brother's team will put PbO + Pb (soda) in the furnace tonight.

At the same time of the update, he also pointed out that most of the papers on the firing of PbO + Pb (soot) methods are carried out in uncapped containers, but the Korean team operates in a vacuum.

So, the team will try both "vacuum" and "open" environments to see the effect.

All in all, this "recurrence craze" boils down to two words, simple.

And unlike the previous wave of research by the Indian elder brother (Dias team), the South Korean team gave the process and evidence. For more in-depth understanding of the relevant research, you can poke "the first room temperature atmospheric pressure superconductor" to learn about it.

However, in the midst of the boom, there are also calls for calm. For example, OpenAI CEO Altman:

I'd like to believe it, but are we too excited against magnets?

Wen Haihu, a professor at Nanjing University and a member of the American Physics Society, has a similar view. "the magnetic levitation shown in the video should be caused by a weak diamagnetic effect, which is obviously different from superconducting magnetic levitation," he told Southern Metropolis Daily. Therefore, my judgment is a specious pseudo-superconducting phenomenon.

One More Thing specific results, still have to wait for the bullet to fly for a while. However, this matter is so hot that it first arches out the tidbits.

Netizens found that the research team of the ship's new room temperature superconducting materials also uploaded two papers on arXiv: one with six authors and the other with only three authors.

And the title of the three authors is "the first superconductor at room temperature and atmospheric pressure".

The Nobel Prize is shared by up to three people.

Some netizens gossiped about more details:

The two lead authors of the study, Sukbae Lee and Jihoon Kim, have been working on LK-99 since 1999.

In 2018, Li and Jin received outside investment, and another author of the paper, Young-Wan Kwon, joined their research.

Hyun-Tak Kim, a professor of physics at the College of William and Mary in the United States, is the author of the "2th 4" paper. When Li and Jin began to write the paper, the big man of Wan Yin was pulled over to cooperate to fight.

According to a South Korean report, Li Shuopei submitted their results to Nature in 2020, but Nature politely turned them down when another god, Ranga Dias, made a big controversy. The team of authors decided to publish the paper in other journals first.

So the horse came. According to Kim Hyun-tae himself, the paper "the first room temperature atmospheric pressure superconductor" was posted on arXiv without his permission.

And this paper does not take the names of Kim Hyun-tae and others.

The second paper was also posted on arXiv a few hours later. The one who was "removed" this time was Quan Yongwan.

As Nvidia AI scientist Jim Fan said, up to now, there is the excitement of discovery, the fear of being stolen, the moment of adrenal gland surge, and there is no lack of people grabbing horses.

Anyway, Intrestine.

Reference link:

[1] https://twitter.com/8teAPi/status/1684385895565365248/

[2] https://n.news.naver.com/article/366/0000920152/

[3] https://m.mp.oeeee.com/a/BAAFRD000020230727824049.html/

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