Seeing that Lu Yongchang did not interrupt his words, Academician Tang Wenshan continued.

"I believe you know the current quantum communication technology, too."

"There is no so-called transcendent entanglement effect."

"It simply uses quantum entangled distribution and stealth transmission to strictly encrypt information."

"At present, we do not have a theory that can use the quantum's ultra-distance entanglement effect to deliver messages."

(ps. In reality, the quantum over-distance entanglement effect cannot be used to achieve over-distance communication, and the transmission speed of information is still limited by the speed of light.)

Lu Yongchang nodded.

He naturally knows this knowledge.

only……

"Academician Tang, the key difficulty in limiting quantum communication technology at present, in my opinion, is nothing more than our inability to accurately manipulate a single photon."

Tang Wenshan suddenly fell into silence.

"That's right... it's not true."

Tang Wenshan said with some confusion: "If we can accurately manipulate a single photon, then we only need to carry another entangled photon, so that we can naturally achieve over-distance communication."

Lu Yongchang shrugged: "Isn't this good?"

“Our task is very simple now.”

"Achieve precise manipulation of a single photon."

...

Three months later.

In the main laboratory.

A huge precision instrument is located in the center of the laboratory.

This is the scientific research results of everyone over the past three months.

A single photon control device.

Lu Yongchang and Tang Wenshan stood in front of the control device with a nervous expression and looked at each other silently.

"Mr. Tang, start the experiment."

Lu Yongchang took a deep breath and said in a deep voice.

This is the first step in realizing quantum over-distance communication.

Only by achieving perfect manipulation of a single photon can they use the quantum's ultra-distance entanglement effect to transmit information.

Hearing the order given by Lu Yongchang, Mr. Tang's eyes showed a complicated look.

Excited, nervous and expectant.

He slowly pressed a button in front of him.

The machine is started.

The indicator lights change quickly.

As the indicator light turned green, a photon shot out from the single-photon emission instrument on the left side of the control device!

Photons run in the catheter at a speed of 300,000 kilometers per second.

In just a moment, the single photon passed through the narrow conduit and entered a sealed black box on the right.

A large number of polarizers, half-wave plates and interferometers are installed inside the black box.

The inner wall of the black box is equipped with a mirror with extremely reflective properties.

The function of the mirror is very simple to prevent photons from escaping, or to be absorbed by this closed black box.

Other devices are all designed to achieve accurate manipulation of photons.

"Single photon was detected!"

After seeing some data appearing on the display screen in front of him, Lu Yongchang's eyes suddenly became excited.

"Zero, try it, can you accurately control the state of this photon!"

Photons run too fast and their state is too complex. Therefore, if you want to control them, you can only rely on the strong artificial intelligence of zero.

“Yes, professor.”

Accompanied by the sound of zero, there is a slight buzzing sound of the machine running.

Looking at the complex data that kept flashing on the screen, Lu Yongchang clenched his fists gently.

"Professor, it's successful."

Zero-flavored sound echoed in the main laboratory: "The instrument successfully changed the motion and spin state of this photon."

After a brief silence, loud applause rang out in the main laboratory!

"Professor Lv! We succeeded!"

Tang Wenshan took a step forward and rushed to Lu Yongchang quickly. He stretched out his hands and held Lu Yongchang's hand tightly. The excitement in his eyes seemed to be overflowing!

"Yes!" Lu Yongchang suddenly breathed a sigh of relief, "We succeeded!"

Although there was a systematic guarantee, it was not until this moment that the huge rock hanging in his heart completely fell to the ground.

"Mr. Tang, next, it's time to study a pair of entangled photons."

Of course, before that, Lu Yongchang gave a small vacation to a group of scientific researchers.

After all, not everyone can hold on to high-intensity scientific research work for three consecutive months.

...

After returning to the office, Lu Yongchang sat in an office chair and closed his eyes again.

From the moment the experiment was successful, a bold idea came to his mind.

Since they now have mastered the precise control of individual photons, can the originally abandoned optical quantum computer come in handy again?

After all, the reason why I gave up optical quantum computers at the beginning was that they could not program and could only solve specific problems.

The fundamental reason why it cannot be programmed is that humans cannot accurately control photons!

After thinking of this, a more bold idea vaguely arose in Lu Yongchang's mind.

With excitement, his consciousness entered the space of the technology tree.

Sure enough!

The technology tree has quietly changed.

The brightness of the cursor of quantum over-distance communication technology has reached 50%!

And this is not the biggest change.

The biggest change is that a bright white solid line extends next to this cursor.

[Phonic control: realize accurate manipulation of a single photon!]

The cursor is bright.

In Lu Yongchang's feeling, this cursor seems to be a little brighter than other cursors!

When Lu Yongchang focused his attention on the photon control cursor, a dim dotted line extended out of it.

The direction of extension is the "ceiling" that symbolizes first-level civilization!

He subconsciously held his breath and silently watched the dotted line slowly extending in the fluorescent green space!

breakthrough!

The moment the dotted line broke through the ceiling of first-level civilization, he only felt a loud bang coming from his mind!

His face turned red and he looked at the top of the technology tree system with rapid breathing, trying to look up at the so-called second-level civilized technology!

The technology tree interface slowly moves upward.

Several icons that were so dim that they were almost invisible appeared in front of him.

【Preliminary mastery of energy weapons】

【Photonic Computer Technology】

【…】

The moment he saw those dim cursors, his heart rate rose rapidly!

really!

He guessed right!

The emergence of photon control technology means a breakthrough in the basic technology of photon computers!

However, the photon computer, which originally seemed to have no effect, has become the basic technology of the secondary civilization!
To be continued...