Quantum mechanics was born more than one hundred years, this is the most successful human theory. Because of the birth of quantum mechanics, we can laser, semiconductor, and more advanced technology. In fact, quantum mechanics has play an important role in human life.

But previously produced by the principle of quantum devices, including laser, semiconductor are classic devices, and quantum information technology is developed directly by using the properties of quantum quantum devices, rather than the classic devices. The function of the quantum devices is far beyond the classic devices physical limits, this is quantum information technology brings a new era of new technology.

It's too early to realize quantum computer and quantum communication

The basic properties of quantum mechanics is mainly includes three aspects: first, quantum mechanics is a superposition state, so since the information itself is quantized; Second, the quantum nonlocality, and embodies the nonlocality of entangled state is the very important applications in quantum information; Finally, the quantum is cloned.

A quantum computer performance and the performance of the electronic computer, compared with abacus calculation ability is like computers. Due to the characteristics of quantum probability uncertainty is expected to break through either 0 or 1 binary computer, computer storage and computing power amplification, which makes IT, hardware and software for a revolutionary progress in the field of communications.

Quantum computers like computer, actually is a function to the solution, the difference is the processing of quantum computer operation with quantum chip. Electronic computer use electronic chips to serial operation, replace it with a quantum chip can parallel computing, so the speed of a quantum computer is in quantum, namely additive in parallel computing ability, the corresponding software, programming, and makes the corresponding change.

For a quantum computer, international and China technology made unremitting efforts. Began to study on international in 2002, has now been made into a chip of two qubits. Although quantum technology research China starts relatively late, but development is very rapid in recent years, has a certain status in the world, China has done three qubits, four bits are doing.

Quantum memory at the same time, China's various performance, such as fidelity, and storage mode, etc., many indicators are in a leading position in the world. During the period of "much starker choices-and graver consequences-in", quantum communication has been designated as national key strategic projects in the next five years.

Quantum communication from the academic said passed on quantum information in a quantum network. If there are two quantum networks, we can constitute connected to the Internet, all the network to the entire company, it implements a quantum cloud computing, this function will be better than we are now based on the electronic computer network function better.

But due to a quantum computer, quantum communication on the industrialization of technological breakthroughs, and with considerable difficulty, so these two technologies also need long time of exploration and research, is difficult to be realized in a short time.

Take the lead in the strength of information security and sensors

Quantum information technology may be a new technology of human greatest impact. Quantum technology can be applied in quantum simulator, a quantum computer, quantum communication, quantum cryptography, quantum sensing and other fields. Relative to other areas, quantum technology will take the lead in the field of information security, and sensor applications.

Quantum information, secrecy system to produce a great challenge to now. First of all, now the complexity of the security system is to use mathematics to ensure the security of confidential information, a math problem to be solved, its security will be cracked.

In terms of safety, quantum computers are far away, but is now can use quantum cryptography. Quantum cryptography is quantum secret communication. Quantum secret communication security without the difficulty of mathematical calculations, but by the laws of physics, depends on the uncertainty of quantum mechanics, is the basic principle of cloning, which in theory can not crack, so that more reliable than the current security technology.

At present, the stability of the quantum cryptography and other basic problems have been solved. In some areas, our country has been the industrialization of quantum security experiment, technology has been close to maturity. However, due to lack of quantum relay technology, security can only be used in the metropolitan area of a city. Between the two cities still doesn't work. Everywhere is vigorously promoting wisdom city, quantum cryptography application breakthrough in a single city, has opened up a big market.

In addition, the sensor using quantum information, you can also easily sensing of various physical quantities of the sensor than they are now both sensitivity and precision are greatly improved, and that is in the next few years will meet upon the application of quantum technology.

Now has a temperature sensor, pressure sensor, magnetic sensor, we are doing a nanoscale microscope, these are the current research hotspots in the field of quantum sensor before.

In a word, the quantum information technology will be an important part of human development.