Quantum Computing Learning

 

Quantum Computing is fascinating word in itself, 

It seems attractive for most of the IT Students, and for IT fields peoples.

Quantum Computer is future, and as of now, Technologies are emerging with use of Quantum computer along with Classical computers,

Quantum computer will not be eliminating Classical computing, while it's advancing it.

 

Quantum Computer fundamental unit is called as Qbit, it’s same as Bit are fundamental unit of Classical Computer’s.

Classical computing is what drives smartphones, laptops, Internet servers, mainframes, high performance computers, and even the processors in automobiles. We have several cases where quantum computing may someday help us solve problems that are today intractable using classical methods on classical compute for example Chemistry simulator in computers, Calculation which need big amount of data, Nature based simulator.

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Quantum Computers are based on Quantum Physics, so we will be discussing basics of Quantum Physics

One properties of quantum Physics that’s “Light Polarization” can be studied to understand Quantum behavior 

“Qubits exactly behaves like Polarized Photons”

 

What is Polarization of Light :

light waves consist of an electromagnetic wave that vibrates in a variety of directions. However, it is possible to transform unpolarized light into polarized light by use of Polarizer. Polarized light waves are the waves in which the vibrations occur in a single plane. The process of transforming unpolarized light into polarized light is known as polarization.

 

 

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Super-Position and Entanglement in Quantum:-

 

First lets discuss about use of Superposition and Entanglement in Quantum computing,

In Classical computers, Laptop or phones, ‘Byte’ is a individual unit of Memory or Storage, that’s how we use the word Gigabyte or Megabyte(1 million byte of information)

A byte is further broken down into eight bits, Each bit can be 0 or 1. Doing the math, each byte can represent  256 different numbers composed of eight 0s or 1s, but it can only hold one value at a time

If we take example of 2 Bit’s, it can have possibly 2 values at a time :-

  

00

01

10

11

 

However in Quantum Computers , 

One qubit can represent both value 0 and 1 at the same time, thus, Eight qubits can represent all 256 values at the same time. This is through superposition, but also through entanglement, the way we can tightly tie together the behavior of two or more qubits.

This is what gives us the (literally) exponential growth in the amount of working memory.

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