The Memoirs of Cultivating Immortals

Chapter 291 Last Words
Gu Yijue's back was covered with cold sweat. She thought of the beam of light that Li Ang had released towards the sky just now, and she vaguely realized something, and subconsciously started the time regression.

With a flash of green light, the meteor crater disappeared, and the scene returned to the narrow and cramped basement.

The 740th [-]th cycle of six starts here.

Raven, Dumbledore, and the Mandarin had already adapted to this death-rebirth cycle, subconsciously gathering mana and planning to attack by force.

After more than [-] cycles, these mages have cultivated enough tacit understanding, and they don't even need to make eye contact. The slight mana fluctuations overlapping each other are enough to convey information.

"We have become more and more familiar with this kind of high-intensity fighting, and we are probably only one step away from defeating or even killing Li Ang."

The same message appeared in the hearts of the three, and joyous emotions followed.

However, Mage Gu Yi on the other side of the basement didn't have the heart to look forward to victory. Her face was tense, and she was still thinking about what Li Ang said, "In the cone of light, everything is destiny."

"The beam you just unleashed,"

Suddenly, Master Gu Yi raised his head and asked awkwardly, "What is it?"

"It's a photon."

Li Ang explained with a smile: "More precisely, it is to separate a pair of entangled photons carrying information, and release one of the photons to a quantum communication satellite on the moon.

This process is repeated a certain number of times at a high frequency, forming a series of photon strings. "

Everyone looked at each other in blank dismay, puzzled—they really couldn't understand the content.

Fortunately, Raven, whose ostensible identity was Prime Minister Rachel Ross, suddenly realized that among the cabinet ministers of the British Empire held hostage by the blood clan, there was a minister of energy and climate change with a background in science and engineering.

She released a spell casually, and the Minister of Energy and Climate, who was deprived of consciousness by the "Mind Curse", immediately stood up, and said mechanically according to the script: "The technology your Excellency Li Ang mentioned should come from the quantum teleportation scheme. It is commonly known as quantum communication encryption technology.

Generally speaking, a piece of information is divided into two parts, classical information and quantum information, and transmitted to the receiver through the classical channel and the quantum channel respectively.

Classical information is naturally traditional ordinary information, using traditional laser communication, which is specially responsible for transmitting the information ontology.

The quantum channel is more high-end. It is not responsible for transmitting the content of the information body, but the measurement information of the quantum state, which is the code used to analyze the information.

To use quantum encryption technology, it is necessary to transmit the unknown quantum state of a particle to another place, and prepare another particle to this quantum state, while the original particle remains far away.

According to His Excellency Li Ang, it should be that he sent a series of individual photons, and the receiving party on the moon measured the shape of these photons, and finally both parties obtained a random sequence of numbers.

Because a pair of photons has the property of quantum entanglement, the random number sequences or quantum keys obtained by both parties are exactly the same.

The unique randomness of the quantum key makes it irrelevant to the ciphertext itself. According to the theory of Claude Shannon, the founder of information theory, the ciphertext encrypted with random number cipher is absolutely unbreakable even mathematically.

For an eavesdropper, it is impossible to steal the information carried by the photon string, because Mr. Li Ang puts a single photon string, and a single photon is the smallest unit of light, which cannot be further divided.

Coupled with the collapsed nature of the quantum, the observation of the eavesdropper will change the quantum state, making it impossible for him to obtain the original key and to analyze the information based on the key.

Combining all the above-mentioned conditions, the single-photon quantum state key transmission technology used by Your Excellency Li Ang is absolutely undecipherable—no matter what method is used, no matter what technology is used, no matter how high the computing power is, it cannot be deciphered. According to the Heisenberg test The quantum state key is generated randomly without any principle. "

After the Minister of Energy and Climate Change's explanation, everyone was still in a daze, and they could only cast doubts on Li Ang.

"Hehe, it's the 740th [-]th cycle, right?"

Li Ang said with a smile: "At the end of the 740th 384400th cycle, I released a single string of photons towards the moon, and these strings of photons established an optical link with the quantum satellite of the meme company on the orbital surface of the moon, and the communication distance is the earth-moon The average distance, which is [-] kilometers.

Over the communication distance of 384400 kilometers, the transmission efficiency of the quantum key is 20 orders of magnitude higher than that of the equivalent terrestrial fiber channel, that is, a factor of trillions.

The quantum decoy state light source on the quantum satellite sends 4000 million model photons per second, and a docking experiment can generate a 300kbit security key, with a coding rate of up to 1.1kbps. "

Everyone present could understand every word Li Ang said, but it seemed extremely jerky when combined.

"Tsk."

Li Ang curled his lips and said patiently: "In other words, I sent a large string of individual photons towards the quantum satellite on the lunar orbital plane. I was worried that you might prevent or even tamper with the transmission of the photon string, but you didn't know it. So I was worrying for nothing.

Anyway, these strings of photons form the key in the Quantum Satellite, which ultimately points to a command. "

Gu Yi suddenly realized something, and she said awkwardly: "What order?"

Li Ang spread his hands and said: "The productivity that erupted from the octopus intelligent servant is so huge that I can do some things I like to do-such as building a military fortress deep in the moon."

Gu Yi almost bit his lip, and said in astonishment, "Yes, fortress?"

"That's right, a fortress that uses the magic net system as a weapon." Li Ang said with a smile: "After receiving the quantum key, the moon fortress will start to operate, and it will release a small amount of high-energy particle beams. In a split second, it is strengthened by ether, the energy level is increased, and the target location is shredded."

Suddenly, he paused, and quickly said: "The average distance from the earth to the moon is 384400 kilometers, and the speed of light is 299792458 m/s, which means that it takes 1.28 seconds for light to travel from the moon to the ground."

As soon as the voice fell, 1.28 seconds arrived.

Light, endless light.

The Moon Fortress suddenly released a beam of light that reached the sky, spanning a distance of 384400 kilometers, and directly hit the basement in the center of London, the British Isles in the North Sea.

Gu Yiheng didn't even make a sound, but was completely torn apart by the high-energy particle beam.

The time regression passively begins, a green light flashes, and the basement returns to its original state.

However, it has not waited for Gu Yi to gain a firm foothold. The time of 1.28 seconds is up again, and the beam descends again.

Li Ang stood alone in the beam of light, his body was scoured by the high-energy particle beam, festered and disintegrated, and was quickly repaired by time regression.

The strong body of the Jindan cultivator made Li Ang always survive longer than others, so even if Master Gu Yi wanted to die together, he couldn't do it.

"you lose."

Li Ang received the scour of the high-energy particle beam again and again, watching the green light flickering on the body of the ancient one, trying in vain to go back in time, and laughed loudly: "It's useless, the speed of the photon string is close to the speed of light, so at the At the time of 740 five cycles, the string of photons has gone beyond the interference range of time retrospect.

In other words, the fact that the string of photons is passing into the moon-base, has become the past light-cone of the second thousand 740 fifth cycle.

If you continue the plot according to the 740th [-]th cycle, there is still a glimmer of life.

But, when you go back in time, and go into the second thousand 740 sixth cycle, the fact that the string of photons is delivered to the moon base has become the future light cone which cannot be changed.

Whether you perform the 740th cycle for the seventh time, or become the 740th eighth time, or the 740th time, you cannot rewrite the established time anchor point.

Outside the cone of light, everything is unknown, ignorant, panicky.

Within the light cone, everything is fate, there is no escape, no escape. "

Li Ang looked at Gu Yi, who was still struggling, and said flatly: "When you step into the light cone, you have lost the qualification to fight against fate."

Gu Yi was speechless, the high-energy particle beam with a period of 1.28 seconds was constantly destroying her, and the Eye of Agamotto was constantly repairing her.

In her perception, the world lines are constantly closing, which symbolizes that the future with endless possibilities is dying, and everything is moving towards the established destiny.

Number of world lines: 98413579813
Number of world lines: 841613246
Number of world lines: 15613
Number of world lines: 952
Number of world lines: 2
Only the last two possibilities are left, and the world line will be integrated into one soon, and the Eye of Agamotto can no longer reveal other possibilities.

"I lost."

Gu Yi, who was constantly melting in the beam of light, said the last sentence with difficulty, "Please, guard, this planet"

Green light flashes,
Number of world lines: 1
In the basement that had returned to its original state, Gu Yi's figure had disappeared, and the rest of the people looked at each other in confusion, not knowing what happened to them.

"The Dao is fifty, the sky is fourty-nine, and people are one of them."

Li Angshi stepped forward calmly, picked up the Eye of Agamotto from where Gu Yi was standing just now, and casually looked at it, "The secret of Minkovsky's time and space can be seen in front of my eyes."

(End of this chapter)