Do Quantum Computers Exist? : Fully Explained! [2023]

Person wearing goggles using quantum computer


When scientists want to perform various practices, such as harnessing the power of molecules during photosynthesis, they can only do so with old computers.

So, they need to use quantum computers. They can measure and observe systems at the molecular level and solve the conditional probability of events.

Indeed, many people are still wondering that do quantum computers exist. The answer to this question is a mixture of yes, no, and all the space in between. 

Functionally, quantum computers exist and can perform various tasks, but they still need fully operational models. Quantum computing can do billions of years’ worth of computing throughout a weekend.

In addition to this, they are also capable of untangling some of the most complex problems of the world process. This short guide helps you dig into questions like whether quantum computers exist, the benefits of quantum computing, and the price of quantum computers. 

Quantum Computers Explained

Quantum computers are a multidisciplinary field that compromises various aspects of computer science, mathematics, and physics.

It uses quantum theory to solve complex problems faster than classical computers. However, the field of quantum computing includes application development and hardware research.

Furthermore, quantum computers can solve certain problems by taking advantage of quantum mechanical effects, like quantum interferences and superposition.

To perfectly understand quantum computers, you must understand qubits, entanglement, superposition, and quantum interference.


It is the basic unit of information in quantum computers. Sort of like a traditional binary bit in classical computing. However, qubits use superposition to be in several states simultaneously. Binary bits can represent 0 or 1.

In addition, qubits can be 0 or 1, and any part of 0 and 1 in a superposition of both states. 

The question is, what are qubits made of? The answer to the question depends on the architecture of quantum systems. It is because some qubits need extremely cold temperatures to work properly.

However, they are made from trapped ions, artificial or real atoms, quasiparticles, and photons. On the other hand, binary bits are often silicon-based chips.


Quantum particles can correspond to measurements with one another. So, when they are engaged in this state, it is known as entanglement.

During this process, measurements from one qubit can be utilized to reach conclusions about other units. Furthermore, entanglement helps quantum computers solve complex problems and calculate larger data and information stores.


It is a mode when quantum particles combine all possible states. However, the quantum particles continue to fluctuate and move while the quantum computers measure and observe each particle.

One of the most interesting facts about superposition is that instead of the two-things-at-once point of focus. It is the ability to see quantum states in several ways and ask them different questions.

Instead of performing tasks sequentially, like traditional computers, quantum computers can run vast numbers of parallel computations.


Just like qubits experience superposition, they can also naturally experience quantum interference. It is the probability of qubits collapsing one way or another. Because of the possibility of interference, quantum computers reduce it and ensure accurate results.

Benefits of Quantum Computing

Quantum computing has almost limitless business potential. For instance, it can help organizations to find new ways to create and innovate new products.

In addition, it can also help organizations enhance their supply chain and build better customer service strategies.

A data scientist and quantum computing expert explain how quantum computing lets business problems be presented in a structured way, just like a wish list, having all the complexities.

However, a so-called objective function encodes all of them that solve them in a structured manner. 

When you are well aware of the origin of the problems of your business, you can define better strategies and action plans to eradicate them and thus improve your performance.

That’s why quantum computers can be a beneficial asset that allows you to enhance your business. However, it is a relatively new field, but it has lots of potential to change the world. Here are some benefits of quantum computing.

Privacy or Security

One of the major benefits that you get with quantum computing is digital security and privacy. Undeniably, quantum computers are capable of breaking current cryptographic algorithms.

It is because they can perform more factors exponentially compared to traditional computers. It means that classical encryption methods will be vulnerable to quantum computing. However, a quantum algorithm already developed could do just that. 

Cost Reduction

Using quantum computers, data analytics could allow you to run more effective ad campaigns. It would feed information on strategies that are working best and avoid those with fewer results.

Quantum computing works to optimize processes, services, products, etc. They also allow you to make more appropriate decisions to spend less on operating expenses, administrative software, personal, etc.

Simply put, they provide you with systematized, accurate and helpful information that allows you to cover more processes. 

It also helps you identify what works and doesn’t in your business. In this way, your company needs to invest less in production and distribution costs and can better use the profits obtained.

Moreover, using quantum computing to resolve the issues of production insufficiencies has long been a debate. It is because several people understand how they work.

Many people still need to be convinced of its true potential and what it promises. A real-life example of using quantum computing in daily business operations could be to determine how inefficient your production, product delivery, or even staff scheduling is from your available data. 

Increase in Revenue

It is undeniable that you can find out more marketing and sales opportunities if you can analyze data more accurately and quickly from the huge amount of datasets.

As a result, you can also adjust your marketing and sales strategy by determining specific market trends and predicting the future of your business.

One of the major benefits of quantum computing is the outstanding capacity to process data. In addition, it also provides the best solution for your company’s success. 

A recent study revealed that 21% of companies’ surveyed affirmed revenue enhancing as one of the major benefits that quantum computing could offer.

The data from the study also showed that all industries highly value quantum computing due to its capabilities to solve large-scale optimization problems.

Data Analytics

Quantum computing can help solve problems on a huge scale. A topological analysis where geometric shapes work in specific ways describes computations that are impossible with today’s conventional computers due to the data set used. Quantum computing can be boiled down to relatively simple calculations.

Spending Less on Infrastructure

Several people are skeptical, but quantum computing helps you save money on physical infrastructure. If you are working in transportation, quantum computing can analyze historical data quickly and accurately to help plan your route for perfect results.

For instance, adding more routes or developing more deliveries at certain times could save you money and keep in mind the factors in driver hours. 

You can collect these data by predictive and prescriptive analytics. However, the potential capability to develop a framing thus lets a machine understand reality.

It also helps you to know how things work to provide solutions adapted to your needs may happen soon.

Drug and Material Development

Quantum computers have the capability to drastic progression in drug recovery and development. Ultimately, this allows scientists to solve problems that are currently intractable.

With very high processing power, quantum computing can simultaneously review several molecules, chemicals, and proteins using quantum simulation.

It currently needs to be more achievable with a standard computer. Moreover, it allows drug options to be developed faster and more effectively than today.

Quantum Computer Price

The required resources are qubits and runtime to put a price on quantum computers. However, the unit of quantum computing should be the qubit-second.

Currently, that is different from how quantum computing services are priced. On average, each qubit-second costs almost $0.05.

A quantum computing campaign for a significant issue would cost over $ 10 billion at current prices. This cost is expected to scale down very significantly in the next decade. 

You can currently buy quantum computers over the cloud. However, since the prices are dominated by the costs of starting each job or shot and the general upkeep of a cloud service, don’t forget that they are not priced depending on the number of qubits or runtime.

So, you can estimate such prices depending on typical runtimes and the known numbers of qubits in each system. The price of quantum computers is billions to build.

However, China-based technology plans to sell a $5000 desktop quantum computer. So schools and colleges can easily purchase them. Keep in mind that last year, it started selling a quantum computer for $50,000.


Quantum computers can revolutionize computation, making certain solvable types of classically intractable problems. Few large companies and small start-ups now have functioning non-error-corrected quantum computers. They are composed of many tens of qubits. In addition, some of these are even accessible to the public via the cloud.

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