Chapter 424: The Prototype of the Quantum Chip 2

After all, today's quantum computers do not have quantum chips, but like the first computers, a large number of transistors are used to undertake the processing of data.

Why is the computing power of hundreds of quantum transistors dozens of times greater than the computing power of today's super servers?

The essential difference is that quantum chips perform quantum computing, while digital integrated circuit chips perform digital computing.

In digital integrated circuit chips, the high and low levels represent the 0s and 1s in the binary algorithm, and the Rocky operation is performed through the logic gate composed of a triode and an OS tube.

What needs to be completed in the quantum chip is quantum computing, which is represented by two different quantum states of 0 and 1 in the quantum algorithm, and its operation also needs to have corresponding quantum logic gates, which can be superimposed and stored in superposition compared with digital circuits.

For a function f(x), you need to bring in 100 x values to get 100 results, if in the classical calculation, you need to calculate 100 spines, and you need to calculate once with x.

But in quantum computing, you only need to calculate it once.

Since the computing unit is a qubit composed of quantum states in the process of quantum computing, all x-values are quantized.

100 x values can be superimposed into a mixed state, and if you bring it into the quantum chip and calculate it once, you can get a mixed state of 100 results, and then after the corresponding measurements, you can find the results of the corresponding values.

Therefore, the corresponding superposition storage is also very understandable, 100 x values can be mixed into a state for storage, and 100 memories are not needed, so in terms of computing efficiency, this is also the reason why quantum computers are tens of thousands of times faster than ordinary computers.

The efficiency of each quantum transistor is tens of millions of times that of ordinary electronic transistors, so just a few hundred quantum transistors have dozens of times faster computing power than today's top servers.

So if it is made into a quantum chip, then if hundreds of millions of quantum transistors are integrated into a chip, then how terrifying will the computing power in it reach?

At present, quantum chips have also been manufactured in the world, but because of process problems, and there is no way to integrate quantum transistors in a chip, and there is no corresponding software and algorithm to support it, so it cannot be used for civilian use, and it is not as powerful as ordinary computers.

At present, superconducting systems, semiconductor systems, and quantum well systems all have corresponding quantum chip research, and are being explored in the direction of large-scale inheritance.

At present, the technical route based on the superconducting Josephson junction system is ahead at the current stage, but in recent years, the gated quantum dot technology based on semiconductors has developed rapidly, so except for Datang Technology, which has found the right path for quantum computers, others have not made any conclusions about which technical route quantum computing will take.

Since 2010, Professor Guo Guoping, Chief Scientist of Origin Quantum and Professor of Huaxia University of Science and Technology, has presided over the national key research and development programs of "solid-state quantum chips" and "semiconductor quantum chips" in China.

The first-generation semiconductor and bit quantum chip - Xuanwei jointly developed by Origin Quantum and Huaxia University of Science and Technology can be well combined and utilized by the semiconductor quantum dot system.

Through the pure electronic control of the preparation, the control and reading of qubits are more stable, and ultra-fast accurate control and long-coherent fast manipulation of coding can be realized.

The first-generation superconducting six-bit quantum chip independently developed by Origin Quantum, Kuafu, has the fidelity of a single quantum logic gate of up to 997, which is only one step away from the current international level (9994).

In order to improve the reading efficiency of quantum chip information, Origin Quantum has independently developed a variety of quantum parametric amplifiers.

Among them, the QRIGQ-IPA-6650 quantum impedance matching amplifier can achieve a gain of 15-30 dB, a gain of 20 dB in high-bandwidth mode, and a gain bandwidth higher than 400 Hz.

Its noise is as low as the standard quantum limit, and it is the best quantum parametric amplifier of the same type in China.

At the same time, Origin Quantum is developing a quantum traveling wave parametric amplifier with higher gain bandwidth and more stable performance, which is expected to be able to be read in parallel with at least 20 qubits.

If you want to package the chip, Ye Fan also considers referring to their packaging technology, maybe it can be used when packaging quantum transistors in the future.

Based on quantum computing chips and quantum parametric amplifiers, Origin Quantum has developed a variety of stereo packaging technologies, which can greatly reduce signal crosstalk and suppress environmental noise.

For example, the three-dimensional packaging of IPA chips can be used to complete the packaging of IPA chips, and provide room temperature and low temperature test interfaces.

The newly developed third-generation closed quantum chip package can be used to complete the packaging of 1-6 bit quantum CPUs, and provides room temperature and extremely low temperature test interfaces.

They are not like Ye Fan, they have systematic guidance, and they can exchange various technologies from the system.

For a technology that is so ordinary in Ye Fan's eyes that it can no longer be ordinary, it is very difficult to develop the right path in the eyes of others.

What's more, the development of quantum chips is more difficult and arduous than the development of traditional chips, and even more difficult than the miniaturization of quantum transistors.

They not only have to tackle the quantum chip process, but also continuously improve the principle design of the quantum chip.

It is not beneficial to the development and progress of science and technology.

The scientific and technological progress of the entire human race does not need to be promoted by Ye Fan alone, after all, he is not a saint, he is just an ordinary person.

He didn't want to engage in any great sage practice that combined tens of millions of great powers, the scientific and technological progress of a race, one person can only play the role of a mentor.

What Ye Fan wants to do is to constantly guide scientists, and even ordinary people, to stimulate their willingness to research and develop science and technology, instead of looking at money in everything like today's reality.

In fact, if human beings go out of the earth and enter the age of galaxies, money will really not be as important as it is now, and the existing monetary system may be upgraded or even collapse directly.

After all, the resources in the universe are very abundant, and when human beings obtain a large amount of resources, it will definitely have a huge impact on the existing monetary system.

So there is no point in money or not, and resources and science and research are the most important factors to ensure that humanity can survive in this dark universe.