How Quantum computing works - and how it will change the world - TeKnology Article

Quantum computing is the next big thing. You've probably heard about it before—it's got a lot of buzz around it. But what is it, really? And how will it change the world?

Well, we're here to tell you: quantum computing has the power to change everything!
Basically, quantum computers use quantum bits (qubits) instead of regular bits in order to process information. So what does that mean for us? Well, let's break it down:
As we know, computers are made up of transistors. A transistor acts like an on/off switch, so if you turn on one transistor, another transistor might turn off. This is how a computer works: you have to turn on one transistor at a time in order to get any work done. When these transistors are turned on and off millions of times per second (which happens when you operate your computer), they form binary data—or 1s and 0s—that can be used by applications running on your machine.

But quantum computers use qubits instead of regular bits! To understand how this works, let's go back to our example above: instead of turning on just one transistor at a time with each keystroke or mouse click or whatever else gets processed through.

TABLE OF CONTENT

1. Quantum computing explained.

2. The first quantum computers.

3. how quantum computers work.

4. Atoms and molecules as computing bits - qubits.

5. Qubits in real life.

6. How to build a quantum computer, step by step.

7. Quantum algorithms run on quantum computers.

8. Quantum machine learning and AI is here!

بِسْمِ ٱللَّهِ ٱلرَّحْمَـٰنِ ٱلرَّحِيمِ ١

QUANTUM COMPUTER EXPLAINED

The world of quantum computing is a new frontier for science, with existing researchers wondering about the practical concerns. In theory, quantum computers are already here, but they're still a ways off in practice. But as we explore this new area of research and development, there will be an entirely new way of looking at the world around us and the technology which runs it.

Have you ever wondered how quantum computers work, or what they will be used for in the future? If so, this blog post is going to be an eye-opening experience. Not only will you learn how they operate, But you'll also get a glimpse into their revolutionary future.

THE FIRST QUANTUM COMPUTER

The D-Wave One, which was designed and manufactured in Canada, is the first quantum computer in the world. It was created in 2007 by a company called D-Wave Systems Inc. This computer can be used by scientists to solve problems that are too difficult or even impossible for a regular computer. The quantum computer has been sold to Google and NASA. The way these revolutionary technology works is still a mystery to people even though it is already being used by many important people in the world.

This quantum computer is based on a technology called quantum annealing, which is different from other technologies that use quantum physics. Quantum computers use qubits instead of bits like normal computers do. A qubit is made using superconducting materials that are cooled at very low temperatures (near absolute zero). When they are cooled down they form a state known as a quantum bit, which allows the computer to function in ways that are not possible with normal computers.

The other difference between quantum computers and traditional ones is that this type of supercomputer uses probabilistic algorithms instead of deterministic methods (a deterministic method takes a set of given data and uses it to find an output while a probabilistic method takes all the data available and tries to find the most likely result).

It is not new news that the field of quantum computing has been under development for many years. So far, we have been able to create small-scale quantum computers that are able to solve highly specific problems by leveraging their ability to process information differently than traditional computers. It is only recently that the first full-scale quantum computer has been invented. This massive computer will be capable of solving complex problems on a large scale, which is something that no traditional computer can do. The researchers involved in creating this computer have said that it will be used for medical applications, but most people are excited about the possibilities for additional uses in the future.

HOW QUANTUM COMPUTER WORKS

How does a quantum computer work? It's a question that comes up often in conversation, and an answer that is significantly more complex than you might think.

The answer isn't as simple as 'it uses quantum physics to compute' or 'it uses normal mechanics to compute' because reality is something in between. A quantum computer works in ways that are alien to the way we're used to processing information, and it takes some understanding of how classical computers work in order to understand how they do it.

A classical computer has three main components: storage, an arithmetic logic unit (ALU), and a control unit.

The storage component is essentially an array of 'cells' that store 1s and 0s; this is where information is kept when the computer isn't actively using it. The cells are small enough that they can only hold one bit of information (1 or 0). The ALU performs calculations on the information stored in the cells, allowing it to manipulate large amounts of data at once; this allows it to solve problems that would take a human being a significant amount of time (or even be impossible for us) by breaking them down into smaller parts that it can solve one at a time. The control unit operates independently from the ALU, reading instructions.

ATOMS AND MOLECULES AS QUANTUM BITS (QUBITS)

Quantum computers are a very exciting field of study, with the potential to revolutionize almost every aspect of modern life. However, much of the quantum computing literature is impenetrable to those without a background in physics or programming. This is particularly true when it comes to explaining how a quantum computer works at its most basic level. 

In this brief blog post, I'll try to help you understand how atoms and molecules can be used as qubits in quantum computers. 

Atoms can be used as qubits due to their predictable magnetic states. A qubit is simply an object with two possible states: 0 and 1. The key to using an atom as a qubit is that it can exist in both states at the same time! To elaborate, suppose we have an atom with two electron clouds—a lower one and an upper one. If we measure the atom's magnetic field, we will find that it points either up or down. However, somewhere in between the two extremes there exists a point where the magnetic field is zero—this corresponds to the state where both electron clouds are in contact with each other, and therefore don't repel each other at all!

QUBITS IN REAL LIFE

Qubits are the building blocks of quantum computers, which are computers that use the principles of quantum mechanics to process information. They have been known to be able to solve certain computational problems much faster than any classical computer currently in existence. Qubits themselves are also fascinating because of their strange and somewhat mysterious nature, but for this blog, we will just focus on how they relate to real life. Quantum computing is a very new field of science and technology, so the applications for qubits in real life are still making their way into our everyday lives.

There are many different types of technologies that make use of qubits in some way. The most obvious example would be television sets, which have recently gone through a huge transition from the traditional cathode ray tube televisions to using liquid crystal displays (LCD). LCDs are made up of an extremely thin layer of two materials and a third material that is used as an electrode layer. The first two materials are polarizing filters that let light pass through in only one direction, and then there is a layer where each pixel has approximately six different qubits based on how it can control how light passes through it. Because the properties of qubits allow them to encode more information than traditional transistors do, the pixels can display.

HOW TO BUILD A QUANTUM COMPUTER (STEP BY STEP)

Quantum computers are a very hot topic these days, but most people don't realize that they are actually not that complicated to build. In fact, it's really just a matter of following the instructions in this blog.

• Take some regular old computer hardware, with a few extra things on the side.
• Stick it all together, but try to make sure it still has enough space to fit a cat.
• Attach some lasers. Try to make sure the lasers are aligned at only 45-degree angles to the sides of the box.
• Mount a cat inside the box and set up an air purifier and laser pointer inside.
• Put on your sunglasses and wait for it to work!

Just kidding! Building a quantum computer is hard. Really hard. It's so hard, in fact, that it's being hailed as the most complex machine ever built. 

But building a quantum computer isn't just difficult because of the incredibly small scale of quantum physics—it's also hard because of the incredible amount of research and experimentation that has to go into figuring out how to harness qubits (quantum bits). Even though computer scientists have been working on creating these devices for decades, their efforts are still in the very early stages.

Well If you're still intrigued by the idea, here are 10 reasons why building a quantum computer is not easy:

• The fundamental pieces of the machine are separated by meters and must be operated with exquisite precision or the whole thing comes crashing down.
• Each piece behaves differently depending on where it is in relation to every other piece.
• The pieces must be kept isolated from one another so they don't destroy themselves through interference.
• To use them, they have to be brought into coherence, which requires careful timing that takes days and weeks instead of milliseconds or seconds.
• Even then, they only behave properly for fractions of a second before they collapse.

QUANTUM ALGORITHMS RUN ON QUANTUM COMPUTER

Quantum algorithms run on quantum computers. That's pretty much all you need to know about them. I mean, sure, there are a ton of things that you can find out about these algorithms—they're able to do things traditional computers can't, they're going to become the next big thing in cybersecurity and information storage, and they're going to be the basis for a future of computing that looks nothing like anything we've seen so far. But if you want to know how quantum algorithms work in simple terms? That's it. These algorithms run on quantum computers.

QUANTUM MACHINE LEARNING AND AI IS HERE

Quantum machine learning is a research area that explores the interplay of ideas from quantum computing and machine learning.

For example, we might want to find out whether quantum computers can speed up the time it takes to train or evaluate a machine learning model. On the other hand, we can leverage techniques from machine learning to help us uncover quantum error-correcting codes, estimate the properties of quantum systems, or develop new quantum algorithms.

The limits of what machines can learn have always been defined by the computer hardware we run our algorithms on—for example, the success of modern-day deep learning with neural networks is enabled by parallel GPU clusters.

Quantum machine learning extends the pool of hardware for machine learning by an entirely new type of computing device—the quantum computer. Information processing with quantum computers relies on substantially different laws of physics known as quantum theory.

CONCLUSION

In short, quantum computing is a game-changer. It will change the world as we know it. In fact, the only drawback of quantum computing that I could find was that it hasn't been perfected yet (but who knows, it may not be far away). If you want to learn more about quantum computing and how it works, then I suggest going to google and searching for "Intel quantum computing" or something similar.