That means a quantum computer can do GBS 100 trillion times quicker than **a traditional supercomputer**. This, according to Xinhua, does not imply that China has **a fully functional quantum computer** yet. There's no indication of how long it might take them to build one if they get the funding needed.

Quantum computers are expected to be much more powerful than conventional computers because of their unique way of processing information: Quantum bits or qubits can be in two states at once, 0 and 1. Conventional bits can only be in **one state** at a time, either 0 or 1. This gives quantum computers the potential to perform **many calculations** simultaneously, which would be impossible for conventional computers because of the limitation on the number of bits that can be activated at any one time.

Traditional computers operate by following instructions one step at a time, performing different tasks on each instruction. Quantum computers work differently: They make decisions about what task to perform on each instruction, using the fact that all possible outcomes of a calculation need to be considered before a result is reached. This leads to predictions that quantum computers will be much faster than traditional computers at certain problems that current technology cannot handle efficiently.

Scientists have been working on building a quantum computer since the 1970s. The first prototypes were built in 2000.

Earlier this month, a team led by **Pan Jianwei** at the University of Science and Technology of China (USTC) announced that their quantum computer performed a computation 100 trillion times quicker than **a normal computer**, outperforming Google's feat by a factor of ten billion. This brings us closer to realizing Feynman's vision of a universal quantum computer.

The USTC team used superconducting circuits to simulate the behavior of quantum systems. Quantum computers exploit the fact that some objects exist in multiple states at once, which can be either "0" or "1". Traditional computers operate on bits, which are represented as 0s and 1s. A quantum computer uses qubits, which can be in both states at once, allowing it to perform certain calculations much faster than any conventional computer. In June 2015, Google announced its own 50-qubit quantum computer, which should be capable of performing certain tasks outstandingly fast. It remains to be seen whether this advantage will translate into actual applications that are useful today's computers.

Quantum computers promise to solve certain problems exponentially faster than any conventional computer, but they also face significant challenges to become mainstream devices. For example, current quantum computers rely on supercooled materials to achieve their results, which means they need to be kept very cold - below 310 degrees kelvin. This makes them impractical for **most applications**.

Quantum computers can process data millions of times quicker than traditional computers. By 2030, the quantum computing market is expected to be worth $64.98 billion. Microsoft, Google, and Intel are all racing to develop quantum computing technologies. Quantum computers have many possible applications, including coding messages into atoms for communication across large distances, analyzing chemical compounds more quickly, and searching through vast databases for answers - ideas that could not be done on any conventional computer.

In conclusion, quantum computers are machines that use the properties of quantum mechanics to perform **certain tasks** faster than **any conventional computer**. They may one day be able to solve problems that current computers cannot even consider. However, as of now, they are still in **the laboratory stage** of development. There are several companies worldwide that are working on developing quantum computers, among them Microsoft, Google, D-Wave, IBM, and Apple.

The most common use for a quantum computer is likely to be in **very high-speed calculations** or simulations. For example, it could be used to search through huge databases to find patterns or match fingerprints. A quantum computer could also be used to encode messages into particles such as photons or atoms for communication over long distances. Finally, a quantum computer could analyze chemicals or proteins to provide information about their structure or disease state.

There are many challenges facing developers of quantum computers.

This is essentially why quantum computing is still in its early stages. Most quantum computers now use less than 100 qubits, and industry titans like IBM and Google are rushing to boost that number as soon as possible in order to construct an useful quantum computer.

A classical computer uses electrons to represent information, which can be 1 or 0. A quantum computer uses **quantum bits** or "qubits" which can be 1, 0, or both at the same time (i.e., a superposition). A classical computer cannot perform **certain tasks** efficiently or even at all because they would require taking into account more possibilities than there are atoms in the universe simultaneously. For example, a classical computer could not factor large numbers without breaking down due to exponential complexity. However, a quantum computer can use **this technique** known as "quantum factoring" to quickly determine whether a number is prime or not. As we will see, this advantage makes quantum computers extremely powerful and allows them to solve problems far beyond the reach of traditional computers.

In 1995, Peter Shor developed one of the first practical algorithms for performing calculations using a quantum computer. His algorithm allowed a quantum computer to factor large numbers in a manner that was previously impossible with any other technology. Since then, many more such algorithms have been discovered, some specific to particular types of problems and others more general.

The Chinese team, led by the University of Science and Technology of China in Hefei, said that their quantum computer, Jiuzhang, is 10 billion times faster than Google's. On December 3, the journal Science published a description of Jiuzhang and its calculating accomplishment.

Jiuzhang is a complete system for performing **large-scale calculations** using **quantum mechanics**. It consists of **three modules**: a control processor, an algorithm processor, and data storage. The control processor runs software that selects which module to use in order to perform a calculation. The algorithm processor performs the calculation using a collection of logic gates, or switches, all based on the principles of quantum physics. Quantum computers exploit the fact that particles can be in multiple states at once, rather than only one as on a classical computer. This ability allows quantum computers to perform certain tasks more quickly than conventional computers.

In addition to being much faster, a major advantage of a quantum computer is that it can solve certain problems more efficiently than any known method on any conventional computer. For example, a quantum computer could factor large numbers more quickly than any current technique. It could also identify the prime factors of large numbers in less time than it takes today's computers. The researchers say that their current prototype machine is capable of solving certain problems up to 23 digits long within two minutes. They plan to increase the number of digits that it can handle to 100 by improving the quality of its components.

On December, a description of Jiuzhang and its mathematical accomplishment was released. The paper was co-written by Feng Jianren, director of UBTECH, and Zhong Jinhao, a professor at UBTECH.

Jiuzhang is a general-purpose quantum computer that can be used to solve large problems in chemistry, materials science, and other fields where classical computers fail. It consists of about 5,000 individual components, including superconducting magnets, semiconductors, and atoms trapped inside optical cavities. Each component operates at very low temperature (about 4 degrees above absolute zero). Coupled together, they form a computer that can process information much faster than any conventional machine.

Classical computers operate on the principle of transistors either being turned on or off to represent numbers. They are based on the theory of electromagnetism developed by Albert Einstein in 1905. Quantum computers work with qubits - units that can be both 1 and 0 at the same time. A quantum computer uses the rules of **quantum physics** to perform calculations more efficiently than traditional machines. It can solve certain problems classically impossible for conventional computers, such as factoring large numbers.