cosmic hegemony

Chapter 447, Quantum Computer
The entire quantum cloud galaxy is affiliated to the Imperial Institute of Quantum Science. There are no laboratories or the like on the living planets in the inner circle. They are all used for scientists and researchers to live. The real laboratories and so on are all It is placed in space.

Because it is a galaxy closed to the outside world, the entire quantum cloud galaxy is very quiet, with a very small population, and there are very few spaceships and so on compared with other galaxies in the empire.

However, the huge space cities in space are huge in scale. These are all laboratories, and each space city represents a laboratory, some are individual laboratories, and some are team laboratories. Distributed throughout the galaxy.

Li Fu, Yu Liang, and Gong Gaofei walked directly in the void. The three of them didn't wear any protective clothing, but in space, it was like strolling in a courtyard without any discomfort. Stepping on one of them was a small step at first, but it crossed a very long distance all at once. In just a few steps, he came from the living planet in the inner circle to the space city where the headquarters of the Imperial Institute of Quantum Science is located.

Here in the space city where the general hospital is located, the guards of the space city do not seem to be surprised at the fact that the three of them came here directly, because from time to time, people come here directly across the void, and the popularity of Yuanli cultivation has given birth to more and more people. There are also a lot of powerful Yuanli practitioners who directly cross the void with their bodies.

The space city where the General Institute is located is relatively busy. From time to time, there are scientists who come directly across the void, but most of them are small private spaceships that rise and fall.

The entire space city is brightly lit and divided into many functional areas. Various space buildings are lined up with branches on it, and there are also various green plants to decorate. Scientists in white coats are in it Concentrate on your research.

"Your Majesty, teacher, this is the latest achievement of our Quantum Research Institute, a quantum computer!"

Gong Gaofei took Li Fu and Yu Liang to visit the general hospital. There is no doubt that he must first show them the latest research results. There are very few research results in quantum technology, and only quantum computer.

Gong Gaofei pointed to a huge monster, like a huge house, connected with data cables of various colors.

"Quantum computer?"

Upon hearing this, Yu Liang raised his eyebrows.

The quantum computer mentioned by Gong Gaofei is not the same concept as the quantum computer proposed by the Earth Age. The quantum computer proposed by the Earth Age is a kind of physical device that follows the laws of quantum mechanics to perform high-speed mathematical and logical operations, store and process quantum information. When a device processes and calculates quantum information and runs quantum algorithms, it is a quantum computer.

In the age of the earth, whether it is a quantum computer depends on whether the processing and calculation of this device uses quantum algorithms and quantum information. If so, it can be called a quantum computer.

The quantum computer Gong Gaofei mentioned here is obviously not the same as the quantum computer of the earth age, and there is a qualitative difference between the two.

Here, let’s first talk about the working principle of traditional computers. The working principle of traditional computers is based on the logical operation of the two states of 1 and 2. It was first developed after World War II to calculate the trajectory of missiles and shells.

Because the traditional computer has only the logic of 1 and 2 states for several years, it can be called a binary computer. Its advantage is that its principle is simple and its technology is low.

However, in the 20s and 60s, people found that energy consumption would cause the chips in computers to heat up, which greatly affected the integration of chips, thus limiting the speed of computers.The study found that energy consumption comes from irreversible operations in the computing process.

So, does the calculation process have to use irreversible operations to complete?The answer to the question is: All classical computers can find a corresponding reversible computer without affecting the computing power.Since every operation in a computer can be transformed into a reversible operation, in quantum mechanics, it can be expressed by a unitary transformation.

Early quantum computers were actually classical computers described in the language of quantum mechanics, and did not use the essential properties of quantum mechanics, such as the superposition and coherence of quantum states.In a classical computer, the basic unit of information is a bit, and the objects of operation are various bit sequences.

Similar to this, in a quantum computer, the basic information unit is the qubit, and the operation object is the qubit sequence. The difference is that the qubit sequence can not only be in a superposition state of various orthogonal states, but also in an entangled state. superior.

These special quantum states not only provide the possibility of quantum parallel computing, but also bring many wonderful properties.Unlike classical computers, quantum computers can perform arbitrary unitary transformations, and after obtaining the output state, perform measurements to obtain calculation results.

Therefore, quantum computing greatly expands classical computing. In terms of mathematics, classical computing can be regarded as a special kind of quantum meter.The quantum computer transforms each superposition component, and all these transformations are completed at the same time, and are superimposed according to a certain probability range, and the result is given. This kind of calculation is called quantum parallel computing.In addition to parallel computing, another important use of quantum computers is to simulate quantum systems, which is beyond the reach of classical computers.

Because traditional computers are binary computers, when performing operations, all input information is converted into binary information, and then binary operations are performed, and finally converted into the required information when outputting.

This means that traditional computers have a limitation in computing energy. Once the data to be calculated is too large, traditional computers are difficult to do. Especially when performing simulations, traditional computers are increasingly difficult to satisfy scientific research. needs.

Quantum computers use the characteristics of quantum entanglement. Because of the quantum entanglement, there are countless possibilities. It is completely free from the restrictions of binary operations, and it can achieve a qualitative leap in the ability of computers from the essence.

"We should have researched new computer technology a long time ago. Traditional computers are becoming more and more useless. Among other things, the Imperial Army alone has proposed to our Academy of Sciences many times to study new computers. Request, without a powerful computer, it is difficult to calculate the trajectory of the enemy target on the battlefield, so as to lock the target and destroy it."

A smile appeared on Li Fu's face. To a civilization and a country, a computer is somewhat similar to a meridian network. The speed of the meridian network is related to the speed of response.

This is particularly important on the battlefield. In the wars of the interstellar era, attacks are launched at very long distances. The speed of the aircraft is very fast, and the trajectory is erratic. These all need to be calculated by computers.

Although traditional computers, especially supercomputers, have terrible and powerful computing power, what is needed on the battlefield is speed. Even if the calculation is slow by 0.001 seconds, it may change rapidly and miss opportunities.

The other is scientific research. With the development of science and technology, more and more experiments are becoming very dangerous, and at the same time require very high costs, so if it is possible to conduct simulation experiments based on existing data in the computer It saves costs, reduces risks, and greatly promotes scientific research.

In the earth era, why the five big hooligans on the earth unanimously passed the resolution to ban new nuclear tests, on the one hand, it is because these five hooligans themselves have already conducted many experiments and obtained various detailed data; Another aspect is that due to the development of computer technology, many experiments can be simulated by using computers.

This is even more so in the interstellar era, especially for many extremely powerful experiments. If the simulation experiments are not carried out on the computer in advance, once the actual experimental operation is carried out, a carelessness may cause devastating consequences, such as Carrying out experiments on quantum foam, super powerful nuclear bombs, super magnetic energy weapons, energy weapons, etc., can easily destroy a planet casually.

"Originally, quantum computers were the research focus of our Quantum Research Institute, and we had a deep accumulation in the past. Over the years, we have turned our focus to the research of quantum foam bombs. Although there is no real tension, we have also gained in quantum technology. Great progress has been made, and quantum computers have finally been developed after a lot of accumulation.”

"Although it has only just been researched, its computing power is hundreds of millions of times that of the most advanced supercomputer in our empire. As long as there is such a quantum computer, all the traditional supercomputers in our empire can be eliminated."

Gong Gaofei seemed a little proud. The terrifying computing power of quantum computers has completely crushed the existing traditional computers. One uses the diversity of quantum entanglement, and the other is based on the principle of binary. There is a qualitative leap between the two, and they cannot be compared at all. .

"Hundreds of millions of times? Tsk tsk, it's really amazing."

When Yu Liang heard this, his face burst into a smile, his student was amazing, so he, as a teacher, naturally had a bright face.

"You should have reported this matter earlier, and kept it under wraps."

"Teacher, this quantum computer has only been developed recently. We haven't had time to report it yet. We also want to wait until the annual scientific conference to report it. At that time, we can also improve it."

"Well, the volume is too big, it would be great if it could be made smaller."

(End of this chapter)