# Quantum Computing – the future of computing

Can you imagine a world without computing technologies? Be it in our personal lives or at our place of work, world would come to a near stand still without smartphones and computers. Well, what if we say that the next gen computers can actually make the current super computers seem like a old brick game?

Mind-blowing, isn’t it? *Welcome to quantum computing.*

We are currently using the fourth generation computers that are working on microprocessors. The next generation computers are quantum computers which are nowhere near any kind of computers we have seen till date.

The processors of quantum computers will be able to work millions of times faster and are highly complex that the usual principles of classical physics do not apply anymore. Researchers have been actively trying to build quantum computers, the next line of supercomputers, which can help in solving many practical problems of the world and introduce technologies that we dare not dream of now!

What Is Quantum Computing?

The principle for quantum computing comes from quantum mechanics which deals with the properties of the atoms and subatomic particles. On an atomic scale, the particles do not follow the usual laws of physics like the physical objects we see. The subatomic particles have the ability to exist in multiple states at the same time which is something we cannot say for the everyday things we see. Quantum computing takes advantage of this capability of the subatomic particles in making the processor work much faster. With quantum computing realistic realtime rendering required for Augmented reality and virtual reality experiences are conveniently achievable. Few mentions of quantum computing was also made in CES 2019.

How Different Is Quantum Computing from Conventional Computing?

In the conventional computing systems, you can see the bits, logic gates, algorithms and so on. All of these are also a part of the quantum computers except for bits which are replaced by quantum bits or qubits.

In conventional computing, a bit can be in either of the two states – 0 or 1. But in quantum computing, the qubits can be in any state which is a superposition of 0 and 1.*Superposition *means instead of just holding either of the two values – 0 and 1 – the subatomic particles can hold a combination of 0 and 1 in different states simultaneously.

Just as quantum computing can store different values simultaneously, they can also process different operations at the same time.

Imagine the speed at which a computer can work if all the operations you perform in a single day one after the other can all be done at the same time!

For this high-speed processors, the usual microprocessors and transistors we used in conventional computers aren’t sufficient. Quantum computers use Superconducting Quantum Interface Device (SQUID) to build the computers. In conventional computing, a bit can be in either of the two states – 0 or 1. But in quantum computing, the qubits can be in any state which is a superposition of 0 and 1. Superposition means instead of just holding either of the two values – 0 and 1 – the subatomic particles can hold a combination of 0 and 1 in different states simultaneously. Just as quantum computing can store different values simultaneously, they can also process different operations at the same time. Imagine the speed at which a computer can work if all the operations you perform in a single day one after the other can all be done at the same time!

For this high-speed processors, the usual microprocessors and transistors we used in conventional computers aren’t sufficient. Quantum computers use Superconducting Quantum Interface Device (SQUID) to build the computers.

How Can Quantum Computers Change Our Lives?

Though quantum computers are yet to prove their practical advantages, a lot of scientists and researchers have predicted a massive shift in the way the current technologies are employed with the introduction of quantum computers. Here are a few areas where quantum computers could make a significant difference.

**Security:** The quantum computers can easily crack the encryption used today but it will also be able to create high encryption technology with quantum cryptography. With such high-level encryption, it will be impossible to decrypt any data which will be a strong boost for data security. Banking and healthcare sectors can finally be at ease with quantum computers not to add the cybersecurity that normal people can enjoy.

The quantum computers can easily crack the encryption used today but it will also be able to create high encryption technology with quantum cryptography. With such high-level encryption, it will be impossible to decrypt any data which will be a strong boost for data security. Banking and healthcare sectors can finally be at ease with quantum computers not to add the cybersecurity that normal people can enjoy.

**AI and Machine Learning:** In recent times, we have seen a massive increase in the use of Machine Learning and Artificial Intelligence in almost all industries. With the introduction of quantum computing, the accuracy of every prediction and every analysis through these technologies will increase by folds helping organizations make smart decisions.

**Finance:** Major financial corporations depend on software to create a combination of shares that will fetch the optimum results based on the client’s ability to take risks and the expectation of returns. Quantum computers can perform advanced calculations and increase the probability of such profits to a huge extent.

These are just a few areas that can increase its efficiency in bounds with a graze of quantum computing. Apart from this, quantum computing can also prove to be highly beneficial in the fields of weather forecasting, medicines and chemistry.

How Far Off Are We in Using Quantum Computers?

The global tech giants, Google, Microsoft and IBM, are investing extensively in developing quantum computers of their own.

In 2014, Google hired a team of researchers to develop a quantum computer and by early 2015, Google announced that they have found a way for qubits to detect and protect from any errors.

Parallel to Google, Microsoft and IBM were also researching building a stable quantum computing system. In November 2017, IBM announced the development of a 50-qubit quantum computer which can hold its quantum state for 90 microseconds. This was far from anything ever achieved but is not the stable system required.

Soon enough, in December 2017, Microsoft released a Quantum Development Kit, which included the Q# programming language, the Quantum simulator and other resources to create applications for quantum computers.

Apart from these major tech companies, there are a few others like D-wave and Intel which are concentrating on their own research.

Intel in early 2018 announced that it has found ways of fabricating quantum chips which would be a great development in the hardware side of quantum computing. The researchers are also trying to use quantum computers for practical purposes with Google simulating a hydrogen molecule and IBM, following its path, have managed to simulate many other complex molecules.

The chances of quantum computing used for day-to-day applications may seem far away but with the growing interest and the swift incremental successes, let’s hope to see its true effects in play soon.

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