Nowadays, scientists and other people are talking a lot of about quantum and related techniques. However, most of them do not know what exactly quantum is and how it can change our lives. Quantum is the smallest unit of energy that can exist anywhere until we know where it is. Schrodinger's Cat is also an example of a quantum mechanism. By using this quantum mechanism, scientists made a computer. Let us find out what is a quantum computer and how it can change our lives.

Quantum computer was firstly made by Google Inc. This computer is running by quantum algorithms. As I mentioned earlier, quantum can exist anywhere. By using a superconductor, which can make electric resistance become zero and make an electric move very fast. It can connect two different chips which called sycamore with a superconductor and move electrons very fast. Then, electrons can exist in two chips at once and can make quantum algorithms.

▲ Picture of Google`s Quantum Computer

The usual computer can calculate only zero or one at once. However, this quantum computer can calculate zero and one together. So, it can make two different calculations. By using these algorithms, we can calculate more specific and very fast. A Quantum computer can calculate things in 200 seconds which takes 10000 years by using a usual supercomputer. So, it means that we calculate things that we could not calculate. For example, the mystery of galaxy, or the whole simulation of the universe, or greater things. We can also make outstanding artificial intelligence or robot with high intelligence. Quantum computers will change our lives.

▲ Picture of Sycamore

However, there are still difficulties with using this computer. First, the superconductor can make electrons very fast in absolute zero and the temperature of sycamore chip is too high, so it only can run in liquid nitrogen. Also, the computer occurs many errors. So, it is hard to use it right now. Nevertheless, even if the error can be fixed, it is hard to use a computer in the house because it is too big and too expensive.

Quantum computer is a very attractive and amazing technology. The world will be entirely changed if it can be used in a company or house. We can make more elaborate things, and we can know the answer to the universe. It is hard to use it in the company and house from now on, but if scientists make the quantum computers smaller and cheaper in the future, we can change the world.