Chapter 608 - 596: High Dimension

Quantum encrypted communication essentially uses quantum keys for security, and its nature is still based on traditional communication, just with a change in the encryption method.

For example, A sends B a string of quantum characteristic codes, with A recording the deflection angle of each quantum particle at the time of emission, and B recording the deflection angle of each particle upon receipt. According to the quantum entanglement effect, the records at both ends should be consistent.

If a third party discovers this signal and attempts to eavesdrop, the quantum state will change due to the observer effect, and the results obtained by B will be incorrect.

A then openly sends the recorded quantum characteristic code deflection results to B, who compares them; if there are errors, it proves there was eavesdropping, and A would reissue a new characteristic code until both sides are completely consistent.

If it is confirmed that there has been no eavesdropping, then the characteristic code can be used as an encryption method to transfer information. The information is broken into countless segments for transmission, each segment needs to be encrypted and compared with a new characteristic code, and even if intercepted, there is no loss; a re-comparison can simply be made.

Therefore, quantum encrypted communication cannot be cracked, but the transmission medium is still traditional, with the speed of light as the ultimate limit.

The physics of the Parallel World certainly has not collapsed, so surely the phenomenon of quantum entanglement still cannot transmit content. The Zhang scholar’s method is to find an alternative path, which is related to another type of technology and a theory not present in our world line.

The Parallel World first thoroughly researched the principle of the quantum entanglement over-distance effect, then concluded: the over-distance effect of quantum entanglement does not exceed the speed of light.

The reason it appears to people as if it exceeds the speed of light is only because it surpasses the speed of light of 299792458 meters per second; in higher dimensions, it does not exceed the speed of light.

In the year 1897, the Parallel World had already discovered 11 dimensions and found that the speed of light increases with each additional dimension, reaching near infinity in 11-dimensional spaces.

The over-distance effect of quantum entanglement is transmitted through higher-dimensional space, which is why it is unobservable in three-dimensional space and the effect surpasses the speed of light.

So, if a signal can pass through the high-dimensional space connected by a pair of entangled quanta at the moment the quantum entanglement effect occurs, then it is possible to achieve superluminal communication in reality.

So how to find the entrance to high-dimensional space through a pair of entangled quanta? Of course, it requires a tool that can cross dimensions: gravity.

Not to detect gravity, but to interfere with it. At the same time as the quantum entanglement phenomenon occurs, there are faint gravitational waves which are imperceptible, and using these, a medium to high-dimensional space can be established, which also means creating gravitational waves.

Creating gravitational waves is an order of magnitude easier than creating gravity, but it is still an unattainable challenge for the base.

To emit "waves," there must be "strings"—a string that can produce a "noticeable" gravitational wave when plucked.

This type of matter is still beyond the capabilities of the real world, but Wu Yunfeng has discovered something that can do the job: the C172 metal-hydride battery.

Its core, metallic hydrogen, is a degenerate matter, and the immense degenerate pressure can create an environment of extremely high density within a tiny area.

Although it is much weaker compared to neutron degenerate matter, it is sufficient to pluck an almost massless photon.

The disparate technologies from two world lines came together unexpectedly at this moment, laying the foundation for real-time synchronous communication in an age of low technology.

But this only met the most basic preparatory prerequisites. The current research on gravitational waves is still almost a blank slate, and the step from zero to one is the most difficult in scientific research.

Not to mention dismantling the metallic hydrogen battery to use as "strings"; any accidents would be immeasurable, so the related technology and principles must be partially resolved beforehand.

In the end, Wu Yunfeng and the newly recruited expert group discussed and ultimately agreed that the most important breakthrough still lies with gravity, and that establishing a highly precise Gravitational Wave Observatory is essential for basic research conditions.

It was then that they thought of the languishing "Tianqin" team and endorsed the idea of constructing a Gravitational Wave Observatory in space.

In comparison to Earth, space is much more concealed, especially when conducting research on metallic hydrogen samples which must be highly confidential. Additionally, considering the convenience of construction, they unanimously agreed that the Moon was a more rational location.

And at that time, Lu Qun finally saw a glimmer of hope and officially learned about the ins and outs of the quantum communication project team through an agreement.

This route confirmed the need for gravity as a tool and had proven its feasibility, which meant that Tianqin’s plan would receive at least New Yuan’s relentless support.

Especially in terms of technology, relying on the Thousand-Jin Stick No. 3 Project Team, the base was already at the forefront of the world in precise laser control. Although there was still some gap from the requirements of the Tianqin plan, with some effort, it would be achievable, no longer impossible.

"Professor Lu, Yunfeng and I have officially decided on the plan to establish an observatory on the Moon. It will have higher precision than the original Tianqin plan and does not conflict with it.

This observatory plan will also be incorporated into our scientific research center’s plan schedule. If it really is completed, I estimate we could be raised from B+ to Level A."

"Now just call me Lu... I really did not expect so many incredible things to happen, but... I will give it my all, I can’t wait to start work immediately."

Lu Qun seemed very excited; if judged solely by its field, the entire quantum communication project will become the most cutting-edge plan known to the world. If successful, the benefits would be unimaginable.

Especially in terms of gravitational waves, he might well become the most important figure in this discipline, second only to its discoverer; how could that not bring joy?

"That’s good to hear."

Ye Changsi was very satisfied with his attitude and then turned to Wu Yunfeng:

"There must have been considerable exchange between the Institute of High Energy and the quantum encrypted communication team, right? We still need to dig out some people from there. Now that the future is clear, we should try to accelerate the progress as much as possible."

Wu Yunfeng frowned slightly: "That’s a key national priority project. Contact with the Institute of High Energy is definitely fine, but convincing them to spare time to work on this... I’m afraid it won’t work; it’s too sensitive.

Now that quantum encryption is almost finished, they can’t let go of people there."

By the end of the conversation, Wu Yunfeng was already decisively shaking his head. That team’s work was too applied, and it was almost impossible to bridge the gap with the base’s quantum communication group.

"Then we’ll poach from abroad."

Ye Changsi narrowed his eyes, thinking again of those frontier physicists who were over the age limit.

"There is still an abundance of talent overseas, after they sign the agreement, let’s bring them over. Pick those with simpler family relations and who value scholarship.

They lack projects, right? We have enough attraction."

"But wouldn’t this be..."

"Extraordinary times call for extraordinary measures. Isn’t the outside world always assuming we poach from overseas? We’re just acting in line with stereotypes."