What is Quantum Computer? Explained

What is Quantum Computer? Explained

Computers have become a very important part of our lives. Whatever the point of research, space exploration, and technological advancement, nothing is possible without a computer. In the past few centuries, we have reduced the size of the computer or even the power of computing has been greatly enhanced. If we use the example of today's smart phone's computing power, then it is much better than the military computer which was the equivalent of a room.

Despite all those things, our classical computer today is not perfect in many ways. If you talk about their general limitations, then it is their speeds. Because it takes a lot of time to solve complex mathematical equations. 

Among other problems, storage space issues and energy consumption plays a very important role. For this, we need a computer that is many times better than today's computer.

Companies like Google, IBM (International Business Machines Corporation), and Intel are using the rules of quantum physics to create computers that we can be called futures computers. These computers are named Quantum Computers.

This kind of computer has been built or even used in small calculations. Now, these companies are trying to make this computer at a bigger level. 

If these computers start to be built at a larger level,  then they will replace the computers used today. If you do not know what is quantum computer then this article is for you. In this article, you will know -

1. What is Quantum computer?
2. How Quantum computer work?
3. Problems with making Quantum computers
4. What a Quantum computer can do?

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What is Quantum Entanglement? Explained

What is Quantum Entanglement

Today, our entire scientific society fully agrees that the quantum world is a mystery because nothing happens here based on our thinking. But when quantum theory was new, it disturbed many scientists of the time, where one of them is Albert Einstein. In fact, Albert Einstein's quantum theory did not digest, because its prediction was so unacceptable. Even, to prove it wrong, he along with his two companions took the help of a thought experiment called the EPR Paradox.

This thought experiment gave birth to a unique Phenomenon that has been the cause of our research today for its strange behavior. This phenomenon is named Quantum entanglement.

Usually, Einstein and his friends did the EPR Paradox Experiment to prove the quantum theory is wrong. But it was happened completely opposite to it.

In reality, when Einstein and his friends talked about the EPR Paradox, they didn't have the proper equipment to test it. So it was only tested as a thought experiment. For which scientists could not reach any conclusion.

But after some years later, when the appropriate equipment came to us and scientists tested this experiment again, then they found that Einstein and his friends were actually wrong.

Because the result of the experiment came just as the quantum theory was predicted. Since it has been found that quantum theory is correct, it has changed our view of Whole Reality.

Now scientists have been realized that if we want to know the exact nature of the world around us, it would be known through our quantum theory. If you do not know what is quantum entanglement then this article is for you. In this article, you will know -

1. What is Quantum entanglement?
2. History of Quantum entanglement 
3. EPR Paradox in quantum entanglement 
4. What are entangled particles?

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What is String Theory? Explained

What is String Theory

If we see in the eyes of science then we use two different types of theories to understand the whole universe - the first theory is the General Theory of Relativity and the second is the Quantum Field Theory.

If we talk about the bigger objects like stars, planets, etc in this universe then we use the General Theory of Relativity to understand the behavior of this universe.

Where we use the Quantum Field Theory to understand the structure of matter and interaction of energies in the atomic and subatomic levels.

Both of these theories work very well within their respective domains. This means that if an object is larger in size, then the General Theory of Relativity will work there. And if an object is smaller in size or very less in mass, then the Quantum Field Theory will work there.

But why there are two different theories for understanding the behavior of the universe?

So, can we not formulate a theory that will be able to explain the bigger levels and quantum levels phenomena occurring in the universe?

This type of thinking of physicists gives rise to a new theory that we know in the name of string theory. The peculiarity of this theory is that it talks about quantum gravity and multiple dimensions

And it also helps to answer some questions that are related to the BigBang's previous universe, which are still mysterious in modern physics. If you do not know what is string theory then this article is for you. In this article, you will know -

1. What is String Theory?
2. What are the Fundamental Forces? 
3. What is the Standard Model of Elementary Particles?
4. What does String Theory say?
5. What are Multiple dimensions in string theory?
6. What is Quantum gravity in string theory?

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What is General Theory of Relativity? Explained

General Theory of Relativity

What is general relativity? 

General relativity, also known as the general theory of relativity, is a geometric theory of gravity developed by Albert Einstein in 1915. In this theory, he says gravity's effects are a consequence of the curvature of four-dimensional space-time

According to this theory, energy and matter cause curvature in space-time. Wherever there are matters in the universe, there will be curved in spacetime. More matters will create more curvature and less matter will creat less curvature in spacetime. 

For this curvature, the objects in the universe attract each other. This is why planets are orbiting the sun. This curvature is the source of gravity. And in this theory, he also said that in reality gravity is not a force and in fact the same thing as, acceleration.

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What is Gravitational Wave? Explained

What is Gravitational Wave

There are many things in this universe that we can easily see or observe, such as planets, stars, galaxies, etc. On the other hand, there are some things that we have neither seen nor directly observed. But still, we believe that they definitely exist. We only know about them because our mathematical equations predict them. One such mystery was the Gravitational Wave

Albert Einstein predicted the existence of Gravitational Waves in 1916, based on the equation of his General Theory of Relativity. But prior to 2015, Gravitational Waves used to exist only in theory and equations. On 14 September 2015, LIGO first detected gravitational waves, which was created due to the merging of two black holes that existed billions of light-years away from the earth. 

This discovery not only proved Albert Einstein's theory that is more than 100 years old but also gave us a new tool to understand this universe better. You can guess how important it was to detect Gravitational Waves that the three physicists ( Rainer Weiss, Kip Thorne, and Barry Barish ) involved in this discovery were awarded by Nobel PrizeIf you do not know what is gravitational wave then this article is for you. In this article, you will know -

1. What is Gravitational Wave? 
2. How Gravitational Waves are produced? 
3. How do scientists detect Gravitational Wave? 
4. How does LIGO Observatory work? 

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