Quantum computer

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Hello everybody! The topic of my presentation is a quantum computer. I would like to tell you, what exactly it is and when you can has one. And why each one needs in quantum computers.
So, most of modern people have a computer. We have a powerful machine and everybody uses it for many reasons: for entertainment, for working, for chatting and many others.
We live at the age of Big Data. The amount of information grows every year, day, every second. Phone calls, climate data, social media, movie, music – these all store in computer. Besides, scientists needs in calculating machine for solving problems of modern science (and some of them are impossible to calculate). And we need more and more power for it. Unfortunately, power of our computers is limited. So, it is the end?
Yuri Manin and Richard Feynman do not think so. In 1980, Yuri Manin, a Soviet mathematician, proposed an idea of quantum computing based on quantum mechanical phenomena, such as superposition and entanglement.
(These words are not scary. It is simple. When an electron can be there and there at same time. It is a superposition. When you determine one of two electrons, you can determine another at same time. It is an entanglement. )
In 1981, a great American physicist Richard Feynman proposed a basic model for a quantum computer, but theoretically. Today, development of quantum mechanics and technology allows to us to create a real model for quantum computer.
Ordinary computers compute on a binary system of zeros and ones called bits. But quantum computers are far more powerful, they compute on quantum bits or qubits. There are a number of physical objects that can be used as a qubit: a single atom, ions, single photon or an electron. But how it does works?
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...cracking.
Quantum computer can crack every security code. And with quantum computer the idea of encoding system is lost.
• Calculation experiments for new physics theory.
Quantum computer can help in solving problems of modern physics. Such as, a vacuum state, a string theory and others.

Of course, these are great abilities. Creation of quantum computer must be a major problem in the world of science. Moreover, some types of quantum computer are building. Actually, the small Canadian company D-Wave System demonstrated the first 512- qubits quantum computer.
Today, theory of quantum physics is developing extremely fast. It makes it possible to create a powerful quantum computer, which can change our life, as a classic computer did. Imagine, you can modeling and calculate everything, you can know everything. And it is really close future or nowadays, will see.

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