What is Quantum Computing?

4 Mins read


It is a general phenomenon that all the computers we use today have been built similarly. Whether they are the supercomputers of NASA or your laptop at the office, all are upgraded versions of calculators and can perform only one operation at a time. They can’t process Big Data files simultaneously and take much time to produce the required outcome.

The basic process of traditional computer work is storing and processing data made up of bits (binary digits). 1 or 0 are the only two possible values of this traditional computing system. These values create binary code, which a computer needs to read data to perform a specific operation. This whole process of computing is now older and becoming time taking, painful process and needs to be replaced.

Quantum computing, an application of machine learning, is the latest scientific method to replace traditional computing systems. It contains a type of computer millions of times faster than the most advanced supercomputer of the day. A Quantum computer is a machine so powerful that it can complete complex tasks in minutes that would take traditional supercomputers days re even years to solve. IBM quantum computing and Google quantum computing are two competing quantum computing companies, but Chinese quantum computers are also contributing. The reality of the day is that quantum computing is the future of technology.

AMD Ryzen 5 3600 Processor

AMD Ryzen 5 3600 Processor


What’s Quantum Computing?

The laws of physics are very different from what we observe while studying atoms. Some of these, such as quantum theory, are more complex and vast than our traditional understanding. Quantum theory is a subfield of Physics that explains the behavior and nature of energy and matter on the atomic and subatomic levels. Subatomic or quantum particles can exist in several states simultaneously, making them distinct and relevant for quantum computing. The movement of quantum particles in such a way has opened new aspects of technology.

Quantum bits, or “qubits,” are what quantum computers employ in place of bits (0, 1). A qubit can be 1, 0, or both simultaneously, whereas a standard bit can only be one or a 0. This implies that a quantum computer can perform multiple tasks simultaneously rather than a single operation.

Suppose a hypothetical situation in which you need to determine which floor of a building was open among many that were locked. A traditional computing system would check each floor one by one until it discovered the one that was left open. It might take a few minutes or a million years, depending on how many floors there were. This process of computing can be time taking and costly. However, a quantum computer could simultaneously test all the floors, enabling it to surpass traditional computing systems.

This technology is revolutionary because quantum particles possess entanglement. Two entangled quantum particles maintain a relationship no matter how far apart they are. Even though they are thousands of kilometers away, when you change one, the other reacts similarly.

How do Quantum Computers Work?

Quantum computers are more elegant and efficient machines than supercomputers of the day. They use less energy and produce faster and more accurate results for complex queries. A quantum hardware system is roughly the size of a vehicle. It consists primarily of cooling devices to maintain the superconducting processor at its low operational temperature.

A traditional computer uses bits to carry out its operations. A quantum computer uses qubits (CUE-bits) to execute multidimensional quantum algorithms. Different open-source software kits are used for quantum computing, such as Qiskit.

Quantum Computing

Quantum Computing

Here are some components of how quantum computers work.


Traditional desktop computers use a fan to be cool enough to perform tasks. But we must keep our quantum processors at shallow temperatures, just one 100th degree above absolute zero. We produce superconductors using super-cooled superfluids to accomplish this.


Specific components of quantum processors imply a quantum mechanical property at shallow temperatures. This is the process of ‘electrons passing through without resistance,‘ enforcing them to act as “superconductors.” The Cooper pairs are formed when electrons move through these superconductors. Through a process known as quantum tunneling, these pairs can carry a charge beyond insulators or barriers. A Josephson Effect is created when two superconductors are positioned on the opposite side of an insulator.


Josephson Effect serves as superconducting qubits in quantum computers. We can control these qubits’ behavior and get them to store, modify, and read out the parts of quantum information. This can help us to identify the future process of quantum particles, enabling us to get more information about quantum particles.


According to the principle of quantum superposition, the general state of a physical system is a combination of all possible configurations, where a complex number determines the amount in each configuration.

A qubit isn’t helpful by itself. It can, however, pull off a crucial task by putting the quantum data it contains into a state of superposition that combines all qubit configurations that might be feasible. The superposition of qubit groups can produce multidimensional computational landscapes, representing complex issues in new ways.


A quantum mechanical phenomenon known as entanglement correlates with the actions of two distinct entities. Changes to one qubit directly affect the other when two qubits are entangled. Quantum algorithms make use of these connections to solve complex issues.

Why do We Need Quantum Computers?

Microsoft’s engineer Krysta Svore believes that a quantum computer can do far more than solve the FeMoco problem.

The Colossus Computer at the National Museum of Computing

The Colossus Computer at the National Museum of Computing

Tiny organisms that help fix nitrogen in the soil to provide plants with organic fertilizer contain the FeMoco molecule. Krysta Svore stated in her address at the American Association for the Advancement of Science’s Annual Meeting that if scientists could better understand FeMoco chemistry and “if we could mimic what these organisms are doing in the soil in an industrial setting, we could help reduce 3% to 5% of the world’s natural gas consumption that goes to the production of artificial fertilizer.” But, even the world’s fastest supercomputer cannot comprehend FeMoco’s lowest energy state.


Dealing with the ever-growing complexities of the modern world, quantum computing is the future of technology. The ever-expanding Big Data trends, cloud computing, and communication needs require something extraordinary to be stable and relevant. It may take decades, if not years, for quantum computing will replace traditional computing to meet the new trends in technology, businesses, and human needs.

Check out the use of AI in the medical field.

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