"Can you fly next year?"

"Almost, the actual engine test will be carried out after March, and it will be no problem before November anyway."

In the canteen of the Aviation Development Commission, Lin Ju and Zhong Cheng chatted.

Although his ability is completely sufficient, Zhong Cheng has never been in the aerospace port after all, especially in the past two years, there have been a lot of changes, and he is still gradually getting familiar with the work here.

The space agency has confirmed that it will start injecting new forces on a large scale, and in addition to him, the mainstays such as He Ruo and Yun Hongjun have also appeared in the capital many times recently, apparently to better adapt to the job change.

Although the space agency has developed rapidly in the past two or three years, due to the constantly changing situation, various plans have become a little chaotic, and Zhong Cheng has spent most of his energy readjusting these improvised plans.

He also quickly realized that most of the variables came from Xinyuan, or the young man in front of him, so he wanted to know as much as he could.

For example, the miraculous XN90 program is said to be used with A100 to hit the highest peak of propulsion technology inside and outside the atmosphere with fission technology.

"Then you ......"

Zhong Cheng wanted to ask again, but the ringtone of his mobile phone interrupted him, and he looked at the number and wondered for a few seconds before connecting.

"Hey...... I am...... Here's it, okay...... Good. ”

The call lasted for several minutes, and after hanging up, Zhong Cheng stared at Lin Ju with a strange expression, and that look made the latter hairy.

"What's the matter?"

Lin Ju guessed that it might have something to do with him, but he wasn't sure what it was.

"You're going to build a gravitational-wave observatory on the moon?"

Zhong Cheng didn't believe it when he said it, but that's what the Academy of Sciences told him just now.

"Huh?"

Lin Ju looked unaware, he really didn't know about this.

The Moon, gravitational waves?

There are no related projects at the base, is it ......

"Zhong Ju, who did you listen to?"

"Who else could it be, the call from the Academy of Sciences, your President Ye persuaded Wu Yunfeng that you and the Institute of High Energy would build an ultra-high-precision gravitational-wave observatory on the moon.

The Academy of Sciences asked me what the construction date was, and if it was, it would invest in the expansion of a few more scientific facilities. ”

“？？”

……

Class B base.

"Wonderful, really wonderful."

Lu Qun flipped through Jacky Cheung's quantum entanglement communication paper and couldn't help but applaud.

After reading it, he looked at Wu Yunfeng and Ye Changsi next to him, and said with shock:

"It's amazing, it's impossible to make possible, and this ingenious way really opened my eyes."

"Haha, Professor Lu, we need your help."

Ye Changsi kept smiling, and the professor in front of him, Professor Lu Qun, is one of the few senior scholars in China who specializes in the study of gravitational waves.

Gravitational waves were only confirmed at the beginning of last year, and the Nobel Prize organization awarded the discovery two months ago, which is really difficult to study compared to other fields.

The first is that it has just been confirmed, and the second is that human beings have no ability to create or interfere with gravitational waves at all, so they can only stay at the observation level, waiting for a signal to suddenly appear in the universe out of nowhere, and the real scientific research is of limited significance.

Observation of the universe is an extremely long and uncertain process, and it is possible that you will not be able to wait for a detectable gravitational wave signal in your lifetime.

Last year, Lu Qun proposed the "Lyra" program, which, unlike the Aramco LIGO Gravitational-Wave Observatory, is to launch large satellites to high orbits above the geosynchronous orbit to form laser arrays at ultra-long distances.

The principle of the laser interferometric gravitational wave detection device is simple: when the space is distorted when gravitational waves pass by, the high-precision laser reflection array will continuously amplify the degree of deflection of the light to achieve indirect observation.

The larger the laser array, or the longer the distance, the higher the sensitivity and the more weak gravitational wave signals can be detected.

The distance between the satellites of the Lyra project can reach more than 60,000 kilometers, which naturally raises the sensitivity to an astonishing level.

If the reflection path construction can also be completed at this distance, it can be improved by several orders of magnitude.

However, at that time, the Tianqin project encountered great difficulties in the demonstration stage, because the requirements for the laser light source and control system were too high, to the point that it was almost perverted to the point that it was impossible to achieve.

After all, the Earth itself is not a perfect circle, and satellites cannot operate in a perfect geostationary orbit, and these errors are unimaginably high for the Lyra program, far beyond the capabilities that exist and may be available in the next few years.

The Tianqin project was put on hold, although Lu Qun found Xinyuan, who can be called a fortune boy in the aerospace industry, to get investment and some financial support, but a year has passed, there is almost no progress, and their ability to solve the technology required by the Tianqin project is simply not enough.

But now it's finally turning around – not technically, at least not entirely.

All this comes from the non-latency communication plan planned by Ye Changsi and Wu Yunfeng, but with the deepening of the pre-research, it is actually called ultra-short delay and is more accurate.

First of all, let's talk about what quantum communication is:

Quanta have an observer effect and are normally in a superimposed chaotic state.

The essence of quantum is photons, and its characteristic manifestations are the partial direction and angle, which may be 90 degrees, may be 0 degrees, and if it is a superposition of these two states, its deflection angle is 45 degrees, which one is uncertain.

Until a quantum is observed, one cannot determine which state it is in, that is, the uncertainty of the quantum; It is fixed only when it is observed, which is called collapse.

Schrödinger's cat is dead or not, and only after opening the box can he see it, how the quantum particles rotate will have to be observed.

For a pair of entangled quanta A and B, when one particle A is observed to exhibit a certain state, the other particle B will exhibit the same state as A no matter how far away it is in space.

Assuming that particles A and B are in two different positions, the observer will observe exactly the same result.

This is called quantum entanglement latency-free, but this principle cannot be used for latency-free communication.

The reason is that observer A does not know what state particle A exhibits after observation, and each observation is random, so observer B cannot obtain any useful information.

For example, if a string of information is 0101001, it is true that several states of the quantum can be defined as 0 and 1, but observer A cannot determine whether he is sending 0 or 1 when he wants to transmit information, so it is impossible for quantum entanglement to achieve delay-free communication.

And the so-called quantum communication now actually refers to quantum encrypted communication.

(End of chapter)

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