what is quantum computing?

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what is quantum computing?

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The area of study that is based on the principles of quantum theory to develop computer technology is called Quantum Computing. The quantum computer, would gain enormous processing power while having the ability to exist in multiple states, and to perform tasks using all possible permutations simultaneously, as it follows the laws of quantum physics.

At its extreme level, the classical computing depends on principles that are expressed by Boolean algebra. Data must be processed in an exclusive binary state at any point in time or bits. The time is now measurable in billionths of a second, that each transistor or capacitor need be either in 0 or 1 before switching states. There is still a limit as to how quickly these devices can be made to switch state. As we move forward to circuits which are smaller and faster, we begin to reach the physical limits of materials and the threshold for classical laws of physics to apply. Beyond this, the quantum world takes over.

On the contrary, a number of elemental particles such as electrons or photons can be used with either their charge or polarization acting as a representation of 0 and/or 1, in a quantum computer. The nature and behavior of these particles form the basis of quantum computing. These particles are known as a quantum bit, or qubit.

When we talk about Quantum computers, the two most relevant aspects of quantum physics came into our mind, they are principles of superposition and entanglement.

Let’s now take a brief introduction about them:

Taken together, quantum superpition and entanglement create an enormously enhanced and powerful computing. Now, comparatively at any given time, a 2-bit register in an ordinary computer can store only one of four binary configurations (00, 01, 10, or 11), in a quantum computer, a 2-qubit register can store all four numbers simultaneously, as each qubit represents two values. The increased capacity is expanded exponentially, if more qubits are added.

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At this level, particles behave in strange ways in which, usurping over one state at an equivalent time, and interacting with alternative particles that area unit terribly remote.

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