Chapter 103: Quantum Computers

Hearing this question, Yu Yifeng felt a little headache, how could an astronomical problem involve a supercomputer? He is deeply aware of the intricate interconnectedness of various disciplines, as well as the lack of depth of human beings. X's shortcomings are almost all-encompassing.

The road of scientific development has never been a straight road, but a small road that is intertwined with each other, and there are many intersections between each road.

Mathematics is the most basic subject, and then it is divided into physics, chemistry, biology, etc., and then there are many more different branches.

Because of the small population, many seemingly unimportant branches of science and technology are not studied at all, which is also a great regrettable. A large number of papers are stored in the Noah's database, quietly waiting for someone to dig it up.

Countless branches of science actually promote each other, or restrict each other, for example, a breakthrough in chemistry will have an impact on materials science, and materials science will affect engineering, and so on.

In fact, this is still a problem of small population and insufficient development time, Yu Yifeng believes that as long as a few years pass, in this mode of scientific and technological explosion, the science and technology of the entire human race will change greatly.

Computer science should be regarded as a relatively basic discipline.

Nowadays, many jobs are inseparable from the support of computers, such as the automation of the Kinov factory, the control of unmanned excavators, etc., all of which require supercomputers for background control. And almost all science and technology require modeling and analysis and large-scale computing. This means that solving equations, fitting, and approximating solutions requires faster and more powerful computers.

So Noah's strongest central computer has always been used by people.

This situation is actually not very good, because the central computer must retain a part of the calculation and monitor a large number of instruments to ensure the safety of the Noah.

In response to these problems, Yu Yifeng has long wanted to replace a faster and stronger computer.

But the current computer technology has reached a bottleneck, and the Noah is almost supported by the old bottom. The existing supercomputers have not been updated for many years, and the computing speed is almost out of date......

There are many research directions for the next generation of computers, such as biological computers, quantum computers, and so on.

Biological computers sound too fantastical, and the most reliable is the quantum computer, because it is the most practical and the most likely to be realized.

In the past, some countries on the earth have realized the entanglement manipulation of 10 light quanta, and a lot of research experience has been accumulated. According to Yu Yifeng's understanding, after so many years, there should be a breakthrough in this regard.

For this kind of scientific progress, Yu Yifeng usually does not convene a council, so as not to waste everyone's time. He chose to go directly to Yuriko's research institute, Yuriko had always been very aware of the details of the research of the major research institutes, and she didn't know how she did it.

Yu Yifeng walked all the way, while meditating on the details of the quantum computer in his heart, so as not to be ignorant and ridiculed by some people for no reason.

The ceiling and potential of a quantum computer is much higher than that of classical computers currently in use, because its computing power increases exponentially.

The entanglement manipulation of 10 optical quanta means that this quantum computer can do 2 to the 10th power of operations in each step, that is, 1024 operations.

1024 times, such a calculation sounds rubbish and is not a big deal. Even ordinary people's mobile phones have hundreds of millions of calculations per second.

However, as long as there are more light quanta that can be manipulated, its computational speed will increase exponentially!

When it rises to 50 optical quanta, the quantum computer can perform 2 to the 50th power in one step, which is equal to 1125899906842000, that is, a trillion calculations, which has reached the computing power of Noah's fifth-ranked "Tianhe K" supercomputer.

When it reaches 60 optical quanta, its computing power can trample all classical computers under its feet!

When reaching 100 light quanta, each step is computationally fast up to 2 to the 100th power! At this time, the entire Noah's classical computer added up to a scum, not more than a fraction of the quantum computer.

So 200, 300, or even 1000...... What about 10,000 light quanta?

Twenty to the power of 10,000? This is an unimaginable astronomical amount!

"It's too simple for you to think, theoretically, the amount of computation in a quantum computer can indeed be infinitely increased, but in practice it is more difficult." Yuriko glanced at him lightly, interrupting Yu Yifeng's daydream.

"The quanta in a quantum computer must be entangled with each other in order to work. And the greater the number of light quanta, the worse the stability of the entangled state. Our technology can't entangle thousands of photons at the same time......"

"If you want to entangle light quanta, it is best to be in a vacuum and superconducting environment, which involves quantum dots, nuclear magnetic resonance, quantum optical paths, superconducting rings, and so on......"

Yuriko spit out a bunch of proper nouns, making Yu Yifeng feel in a fog.

He has been in a very troubled state of esoteric quantum theory.

He asked directly: "Just say it bluntly, can we make a quantum computer with a higher computing capacity?" ”

This attitude of not seeking much understanding made Yuriko very contemptuous, and she glanced at Yu Yifeng: "...... Yes, with our technology, up to 30-50 optical quanta can be entangled at the same time and manipulated appropriately. ”

Yu Yifeng felt a little dissatisfied, 50 light quanta, too little, such a quantum computer is not stronger than a central computer!

I only heard Yuriko continue: "...... But we once removed a broken computer from a flying saucer, do you remember? That's quantum computers. ”

"We can try to fix it, but we need a few flying saucer materials......"

Speaking of this, Yuriko quickly pulled a lot of things from the computer, "The Huguang Supercomputing Center once wanted to repair this broken computer. They made this report, you can look at it......"

"Gravitational-wave telescopes are UFO creations, and computers have to use UFOs to create things?"

Yu Yifeng's tone was a little unhappy, he took the report, just glanced at it, and his face suddenly turned a little blue.

In particular, most of the requirements are superconducting materials and electromagnetic materials with extremely high performance, and they are all found in flying saucers! Isn't that deadly? They are firmly controlled by major laboratories and are important specimens for research.

If they were to ask for it, those scientists would have to go crazy!

"Do you have to have these materials?" Yu Yifeng frowned and asked, he seemed to see the scene of being scolded for being bloody. Scientists are fierce, but no matter what status you have, you should still be scolded.

"Of course, we can also use our own materials, but the performance is not very good." Yuriko said lightly: "You should also know the barrel theory, as long as there is a shortcoming, the overall speed will also be dragged down." ”

"Okay, I got it." Yu Yifeng said with some unhappiness.

Gravitational-wave telescopes are UFO creations, and even supercomputers are UFO creations...... Compared to human technology, it is scum, which makes him feel quite dissatisfied.

The use of flying saucers creates a sense of insecurity for everyone, because people don't figure out exactly how it works, and it's always uncomfortable for scientists to use things that don't know why.

A civilization's security cannot rely on someone else's stuff...... For example, the defense computers of the Indians cannot always be made in the United States, and the engines of the Chinese cannot always be provided by Russia. It's the same with the analogy Noah, for scientists, they are very reluctant to use such something that is not thoroughly understood.

The use of these flying saucer creations means that they are unstable and unreliable, and even if mistakes occur, people do not know about them, and they are difficult to correct.

Well, in fact, Yu Yifeng is too anxious, human beings don't even have a year of groping, and it is impossible to reach the level of a flying saucer.

But this time the situation is different, even if they are dissatisfied, there is no way, survival is the most urgent issue of a civilization, without supercomputers, there is no need for gravitational wave telescopes, without gravitational wave telescopes, it is difficult to monitor alien spacecraft......

Now, people can only blindly believe in the creation of flying saucers once, because with human technology alone, the detection of green light spaceships is still in a state of helplessness.

This is a question of survival, and the question of the survival of civilization is the first and foremost.