One of the most promising emerging technologies in the 21st century is quantum computing, which harnesses the laws of quantum mechanics to solve problems too complex for classical computers.

Many scientists predict that quantum computing will completely revolutionize our approach to problem-solving, allowing us to cure disease, create an abundance of energy, and travel through time and space.

This article explains how quantum computing works and what it can accomplish in the future.

**What Is Quantum**

Computing?

Computing?

Quantum Computing |

A classical computer bit has a value of either **0** or **1**. Quantum bits, or

qubits, can be in superpositions of states so that they can encode more

information (e.g., 00 + 01 + 10 + 11).

They can also be entangled, so measuring one qubit reveals information

about another qubit.

It allows quantum computers to perform specific tasks exponentially

faster than classical computers.

For example, Shor’s algorithm lets you factor large numbers much faster

than you could on a classical computer.

Many other algorithms have been proposed for quantum computing, but none have been implemented yet—although companies like IBM and Google are currently working on it.

## Concept of Quantum Computing

Quantum computing relies on qubits, which are quantum mechanical bits. It enables quantum computers to operate with a much higher number of

states. For example, a classical computer only has two states: one and zero.

A qubit can be both one and zero at once, meaning that if you had an

eight-qubit computer system—which is already possible in a lab setting—it would

have 28 states available for computation at any given time.

That’s 2^8, or 256 different combinations. That’s a lot more than just 1

and 0! It may not seem like much when talking about 8 binary digits, but try to

imagine what you could do with a 20-qubit computer.

With 220 combinations (or over a million), it would be virtually

impossible for even today’s fastest supercomputers to crack specific encryption

codes.

## What problems can be solved by quantum computers?

Quantum computing helps scientists run complex algorithms much faster

than traditional computers. In some cases, it’s estimated that quantum

computers can solve problems a million times faster.

It may seem like a niche application, but one day we may use quantum

computers to simulate complex systems, advance artificial intelligence and

perform other impossible tasks.

Many technologists believe quantum computing could be most helpful in

chemistry and drug development.

For example, researchers at IBM are working on ways to predict how

molecules will interact with each other before they enter clinical trials;

these simulations would allow them to identify potential drugs more quickly and

efficiently.

**Is It Super Secure**

Against Hacking and Spying?

Against Hacking and Spying?

Quantum computers are a radical departure from all previous models of

computing. In traditional computers, bits represent either a **1 **or **0 **(called

**binary**), but they can exist simultaneously in quantum.

Unlike standard computers, they can easily be programmed to test many

combinations simultaneously, leading to pretty advanced problem-solving

capabilities.

It also means that quantum computers are very secure and resistant to

hacking or spying. However, it’s important to note that we’re still years away from having

a large-scale quantum computer.

**How Fast Will**

Quantum Computers Become Mainstream?

Quantum Computers Become Mainstream?

While quantum computers have enormous potential, they’re still far from

being able to solve computational problems in a way that surpasses classical

computers.

Researchers at IBM predict it will be 10 years before we see quantum

computing devices that can perform tasks beyond what today’s supercomputers can

handle.

There are several obstacles standing in their way, including cost and

complexity.

But with scientists making progress every day, quantum computing may

soon become a reality.

And when it does, businesses and consumers alike could reap benefits as

significant as those brought on by previous technological revolutions.

**Conclusion**

In theory, quantum computers should be able to solve some problems

billions of times faster than today’s fastest machines.

That’s exciting—but they could also pose a danger. Quantum computing is

so new that experts haven’t figured out whether there are real risks or not

yet, but we can look at other emerging technologies to get an idea.

For example, it took decades for scientists to understand how genetic

engineering might affect human health and society.

We still don’t know everything about gene editing—and it hasn’t been

widely adopted yet—but researchers have learned enough to conclude that there

are both benefits and risks involved in its use.

So what does all of that mean for quantum computing? It means we need

more research before using these powerful machines on anything beyond simple

tests and experiments.