Quantum Computing – What Is Quantum Computing?

Quantum Computing

Quantum Computing – What Is Quantum Computing?

Quantum Computing
Quantum Computing


The next big thing in technology is quantum computing. Some startups have made the decision to enter the market first!

The global conversation about technology is dominated by artificial intelligence (AI), with countless articles discussing ChatGPT or DALL-E.

With the introduction of quantum computing, all of these technologies can process data considerably more effectively.

Simply explained, quantum computing is a technique that aids in the resolution of issues that would normally need an excessive amount of time and processing capacity from an average computer.

The general public is quickly adopting quantum computers. In 2021, investment firm Goldman Sachs anticipated that within five years, quantum computing would be deployed in the financial markets.

Several startups are focusing on creating quantum computers and applying them across the economy.

Here’s a closer look at quantum computing and a rundown of upcoming efforts in this field.

What is Quantum computing?

Quantum mechanics, a branch of physics concerned with how matter and light behave at the atomic and subatomic levels, is employed in quantum computing to tackle problems that are too complex for conventional computers.

Quantum bits (qubits), unlike conventional bits, may conduct operations utilizing a mixture of 0 and 1 as well as both 0 and 1 concurrently.

This expedites the process of addressing problems by enabling numerous calculations to be performed concurrently.

The speed of the processing power increases with the number of qubits. The processing power doubles with every extra qubit.

A problem was solved in 2021 by researchers from the quantum computing company D-wave three million times faster than a conventional computer, which is one of the best demonstrations of how quickly quantum computers process information.

Why are quantum computers necessary?

Supercomputers aren’t all that super for some issues.

Supercomputers are used by scientists and engineers when they are faced with challenging tasks.

These are enormous classical computers that frequently have thousands of cores for both the CPU and GPU.

Nonetheless, some types of issues are difficult for even supercomputers to solve.

When a supercomputer struggles, it’s often because the large classical machine was given a challenging problem to answer.

Complexity is commonly to blame for the failure of traditional computers.

Many variables that interact in intricate ways are considered complex problems.

Because there are so many different electrons interacting with one another, modeling the behavior of individual atoms in a molecule is a challenging task.

It is difficult to determine the best paths for a few hundred tankers in a vast transportation network.

Organizations engaged in the quantum computing sector

Quantum Circuits Oxford

Oxford Quantum Circuits, a pioneer in the field of quantum computing, created the first commercial quantum computer in the United Kingdom in 2018.

It is engaged in the construction of quantum computer hardware. Coaxmon, a patented 3D design that serves as the basis for a quantum processor, is one of its most important innovations.

As stated on the company website, it grows qubit numbers while maintaining qubit quality.

Scaling qubits will be made practical by Coaxmon, enabling the commercial viability of quantum computing.

Coaxmon will be used by Oxford Quantum Circuits to provide quantum computing as a service (QCaaS).

Researchers and scientists can access quantum computing technologies through the cloud thanks to QCaaS.

The startup had secured Series A funding worth US$47 million as of July this year.

QpiAI Tech

Platform-as-a-Service (PaaS) supplier for the development of quantum models, QpiAI Tech is an Indian firm.

Three chips—Bumblebee, a scalable cryogenic control chip (which runs between 150 °C (238 °F) and 273 °C or 460 °F), Trion, a quantum processing unit, and a scalable spin-qubit-based quantum processing unit—are used in the hardware the business has developed (QPU).

The business plans to utilize its three-chip hardware somewhere between 20 and 100 times to improve performance.

Since April of this year, QuantrolOx in Finland and QpiAI have worked together on software projects.

The two are collaborating on quantum computing testbeds (platforms for rigorous scientific testing) for enterprises that are situated in Finland and India.


Quantum computers are significantly more adept at solving complicated problems than conventional computers (or even supercomputers), but they are still vulnerable to hacking and online attacks.

QuintessenceLabs is ready to help with the cybersecurity measures that are obviously required to counteract these threats.

Quantum computing is being incorporated into cybersecurity solutions by this Australian business.

The business has earned the 2020 CyberTech100 Award and is well known for its cybersecurity services.

QuintessenceLabs uses QStream, a quantum random number generator, and sophisticated key policy management to safeguard critical data from breaches.

With other devices, it is not possible to generate encryption keys with such a high level of unpredictability.

The harder the encryption keys are to decrypt, the more random they are.

The business received US$25 million in funding in October 2021 to advance the development of its security products.

Multiverse Computing

A Spanish startup named Multiverse Computing has set its eyes on using quantum computing to completely transform the finance sector.

The business sells Singularity, a technology for economic quantum computing that enables financial institutions to manage portfolios and create simple spreadsheets without needing to be experts in quantum computing.

The financial industry benefits especially from singularity because it cuts down on error rates by 43% without adding to processing times.

In 2021, the company secured US$11.5 million in seed money for its initiatives.


IonQ is an American startup that develops universal quantum computers that are driven by trapped ion technology.

The company asserts that their trapped ion computers, which use precisely focused lasers to store and retrieve data, are more accurate than conventional quantum computers, which are created by cooling silicon chips to almost absolute zero degrees.

The only startup on our list that offers quantum computing systems through Google Cloud, Microsoft Azure, and Amazon Web Services is IonQ.

Between 2020 and 2030, the market for quantum computing is predicted to increase at a compound annual growth rate of 56%, reaching US$64.98 billion.

Once completely developed, these computers will be able to streamline the process of addressing complicated problems in a variety of industries, including manufacturing, chemical engineering, artificial intelligence, and financial services.

Many nations have started investing in this field as they see the enormous potential of quantum computing.

For instance, in 2018, the United States spent $1.8 billion on research into quantum computing.

The National Mission for Quantum Technology and Applications (NM-QTA) was launched by India in 2020 with US$1.12 billion in funding (INR8,000 crore).

With all these resources flowing into the market, companies should be able to scale up their quantum computing operations and increase the accessibility of their goods to the sectors that need them.

Use and Advantages of Quantum Computing

The domains of security, finance, military affairs and intelligence, drug development, aircraft design, utilities (nuclear fusion), polymer design, machine learning, artificial intelligence (AI), big data search, and digital manufacturing could all benefit substantially from quantum computing.

Information sharing could be made more secure with the help of quantum computers.

The environment and maintaining clean water with chemical sensors is another area where quantum computing is anticipated to be helpful.

Here are a few advantages that could come from quantum computing:

  • Quantum computing may allow financial institutions to create investment portfolios for individual and institutional clients that are more effective and efficient.
  • They may concentrate on enhancing fraud detection and developing better trading simulators.
  • Quantum computing could be used in the healthcare sector to create novel medications and genetically focused treatments. It might also fuel more sophisticated Genetic studies.
  • Quantum computing can be used to create more secure data encryption and methods for detecting system intrusions using light signals.
  • Systems for planning traffic and designing more effective, safe aircraft can benefit from quantum computing.

Characteristics of Quantum Computing

Quantum computing is based on two aspects of quantum physics:

Superposition and entanglement – They enable quantum computers to perform tasks at rates that are exponentially faster than those of traditional computers while using a fraction of the energy.


According to IBM, the remarkable thing about a qubit is not what it is but what it can do. A qubit superpositionally stores the quantum information it contains.

This describes a synthesis of all qubit configurations that are feasible.

“Superposition of qubit groups can produce intricate, multidimensional computational spaces.

In these places, complex issues can be represented in novel ways.”


The power of quantum computing depends on entanglement. It is possible to make qubit pairs entangled.

As a result, the two qubits are said to be in a single state. In such a condition, altering one qubit has a direct and predictable impact on the other.

Quantum algorithms are created to benefit from this connection in order to address challenging issues.

Adding qubits results in an exponential increase in computing power and capability, whereas doubling the number of bits in a traditional computer twice its processing power.


When the quantum behavior of qubits decays, decoherence takes place.

Vibrations or variations in temperature can abruptly disrupt the quantum state.

Qubits may lose their superposition as a result, which could lead to computation mistakes.

Qubits must be shielded from this influence using techniques like supercooled refrigerators, insulation, and vacuum chambers.

Quantum computing’s limitations

In several areas, quantum computing holds great promise for advancement and problem-solving. Unfortunately, it is currently constrained.

The smallest change in the qubit environment can result in decay or decoherence. This causes computations to fail or make errors in them.

As mentioned before, a quantum computer needs to be shielded from all outside disturbances while it is performing calculations.

The process of correcting errors while computing is still far from ideal. Because of this, calculations may not be accurate.

Qubits cannot take advantage of the traditional error-correcting techniques employed by classical computers since they are not digital bits of data.

The data may become tainted when retrieving calculation results.

There is potential in innovations like a specific database search algorithm that guarantees that the quantum state will decohere into the proper response upon measurement.

Quantum cryptography and security have not yet reached their full potential.

Quantum computers are unable to utilize their full potential due to a paucity of qubits.

More than 128 have not yet been produced by researchers.

“Quantum computers must have nearly no atmospheric pressure, an ambient temperature close to absolute zero (-273°C), and shielding from the earth’s magnetic field to prevent the atoms from moving, colliding, or reacting with the environment,” says Iberdrola, a leading worldwide energy company.

Additionally, because these devices only run for very brief periods of time, the data is corrupted and cannot be saved, making data recovery much more challenging.

Classical versus quantum computers

Compared to conventional computers, quantum computers have a simpler design.

They lack a processor and memory. A collection of superconducting qubits is all that a quantum computer needs.

Information is processed differently by quantum computers than by conventional computers.

Qubits are used by a quantum computer to execute multidimensional quantum computations.

As qubits are added, their processing capability grows exponentially. Bits are used by a traditional processor to run different programs.

As more bits are added, their power rises linearly. The processing power of traditional computers is substantially lower.

For routine operations, traditional computers perform well and have low error rates.

For example, performing simulations, evaluating data (such as for chemical or pharmacological trials), and developing energy-efficient batteries are all tasks that quantum computers are best suited for. They may also make a lot of mistakes.

Traditional computers don’t require extra-special maintenance. They might employ a straightforward internal fan to prevent overheating.

Very frigid temperatures and protection from even the smallest vibrations are requirements for quantum processors.

For that, super-cooled superfluids are required.

Describe the quantum theory.

German physicist Max Planck’s 1900 address to the German Physical Society marked the beginning of the development of quantum theory.

Planck first proposed the idea that matter and energy are made up of discrete units.

The following 30 years saw additional research by other scientists, which resulted in the contemporary knowledge of quantum theory.

The following are some of the components of quantum theory:

Unlike a continuous wave, energy is made up of distinct units like matter.

Depending on the circumstances, elementary particles of energy and matter may act as either particles or waves.

As a result of their inherent randomness, fundamental particles travel in unforeseen ways.

It is problematic to simultaneously measure two complementary variables, such as a particle’s position and momentum.

The measurement of the other value will be increasingly inaccurate the more accurately one value is measured.

Evolution of Quantum Computers


By 2029, Google expects to have built its quantum computer at a cost of billions of dollars.

To aid with the achievement of this objective, the business established the Google AI campus in California.

Google might introduce a cloud-based quantum computing service once it is created.


By 2023, IBM hopes to have a 1,000-qubit quantum computer operational.

For the time being, IBM gives companies conducting research, academic institutions, and laboratories access to its equipment through its Quantum Network.


Using the Azure Quantum platform, Microsoft provides businesses with access to quantum technology.


Financial services organizations like Visa and JPMorgan Chase.


What is quantum computing in simple words?

A fast-developing technology called quantum computing uses the principles of quantum physics to solve issues that are too complicated for conventional computers.

A technology that scientists had only just begun to envisage thirty years ago is now made accessible to hundreds of thousands of developers thanks to IBM Quantum.

What is quantum computing in a nutshell?

In a nutshell, quantum computing In order to do calculations, quantum computing applies the basic ideas of quantum mechanics. It is a new paradigm in computation.

What is an example of using quantum computing?

  1. a) Increasing the battery power of electric vehicles.
  2. b) Placing edge computing equipment in frequently visited public areas.
  3. c) Utilizing numerous connected computers to mine cryptocurrencies.
  4. d) Keeping substantial computing equipment in high-altitude settings.

Is quantum computing real now?

It’s true that quantum computing exists, but it may not be as revolutionary as it seems.

Although there are still numerous drawbacks, as new technologies to advance quantum computing develop, so do its applications across industries.

What could a quantum computer do?

“A quantum computer will be able to simulate atoms and molecules more accurately in the quantum realm.”

This will enable quantum computers to assist in the creation and discovery of novel materials with specialized features, as Curioni explains.

About Author

Leave a Reply