Quantum Computing and It’s Principles, Needs and More

quantum computing

Quantum computing is a multidisciplinary field comprising aspects of computer science, physics, and mathematics that utilizes quantum mechanics to solve composite problems faster than on classical computers. The field of quantum computing includes hardware research and application development.
Quantum computers are able to solve certain types of problems faster than classical computers by taking advantage of quantum mechanical effects, such as superposition and quantum interference. Some applications where quantum computers can provide such a speed boost include machine learning (ML), optimization, and simulation of physical systems. Eventual use cases could be portfolio optimization in finance or the simulation of chemical systems, solving problems that are currently impossible for even the most powerful supercomputers on the market.

What is quantum mechanics?

quantum mechanics

Quantum mechanics is the zone of physics that revisions the behavior of particles at a microscopic level. At subatomic levels, the equations that describe how particles behave are different from those that represent the macroscopic world around us. Quantum computers take advantage of these behaviors to perform computations in an entirely new way.

What are the principles of quantum computing?

Quantum principles require a new dictionary of terms to be fully understood, including superposition, entanglement, and decoherence. Let’s understand these principles below.


Quantum entanglement occurs when two systems link so closely that knowledge about one gives you immediate knowledge about the other, no matter how far apart they are. Quantum processors can draw conclusions about one particle by measuring another one. For example, they can determine that if one qubit spins upward, the other will always spin downward, and vice versa. Quantum entanglement allows quantum computers to solve complex problems faster.
When a quantum state is measured, the wavefunction collapses, and you measure the state as either a zero or a one. In this known or deterministic state, the qubit acts as a classical bit. Entanglement is the ability of qubits to correlate their condition with other qubits.


Superposition states that, much like waves in classical physics, you can add two or more quantum states, and the result will be another valid quantum state. Conversely, you can also represent every quantum state as a sum of two or more different forms. This superposition of qubits gives quantum computers their inherent parallelism, allowing them to process millions of operations simultaneously.


Decoherence is the loss of the quantum state in a qubit. Environmental factors, like radiation, can cause the quantum state of the qubits to collapse. A significant engineering challenge in constructing a quantum computer is designing the various features that attempt to delay the decoherence of the state, such as building specialty structures that shield the qubits from external fields.

Why do we need Quantum Computers?

quantum computers

The field of Quantum Computing is one that is expanding quickly. And has the potential to completely alter, how we approach complex computer issues. This technology uses quantum physics to accomplish computations that are much more composite than what can be done on a conventional computer. Lets discuss the necessity of quantum computers briefly:

Solving Complex Problems

The capacity of quantum computers to address issues outside the scope of conventional computers is one of the primary reasons why we need them. Quantum computers may be used to manage complicated optimization issues as well as those requiring enormous quantities of computer power, such as simulating complex chemical processes, modeling protein folding, and so on.

Machine Learning

The science of machine learning is expanding quickly and has the potential to completely change how we live and work. Machine learning activities can be carried out on quantum computers much more rapidly than on traditional computers.
This is because, unlike conventional computers, which can only process one bit at once, quantum computers can handle enormous volumes of data simultaneously.


Modern communication networks, including the Internet and safe financial transactions, depend heavily on cryptography. Currently, a quantum computer uses decrypts data using encryption methods that are used by conventional computers.
We must create new encryption techniques that can withstand quantum assaults, and Quantum Computing gives us the capacity to do so.


The growth of Quantum Computing has the potential to revolutionize how we approach problem-solving and computer science. It is a field to watch in the upcoming years due to its numerous benefits and innovative applications.

What do you think?

Written by Muzammil Khan

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