As per Wikipedia – Quantum computing is the use of quantum-mechanical phenomena such as superposition and entanglement to perform computation. Computers that perform quantum computations are known as quantum computers.:I-5 Quantum computers are believed to be able to solve certain computational problems, such as integer factorization (which underlies RSA encryption), substantially faster than classical computers. The study of quantum computing is a subfield of quantum information science.
Easy definition of Quantum Computing –
Off-course the above definition cab be little bit bouncy for a beginner who wants to understand the basics of Quantum – for those it can be easily understand by comparing Quantum Computing against conventional classic computer. A classic computing is based on definite position of physical state that is either 1 or 0 but quantum computing talk about other values as well between 0 and 1 it means that rather than having a clear position, unmeasured quantum states occur in a mixed ‘superposition’, alike a coin spinning through the air before it lands in your hand this quantum state of an object to produce what’s known as a qubit or quantum bits.
Benefits on Quantum Computers –
Quantum computers are believed to be able to quickly solve certain problems that no traditional computer could solve in any reasonable amount of time known as “quantum supremacy.” Quantum computing can be applied to solve following real life problems –
There are quantum encryption methods being developed using the one-way nature of quantum entanglement. Chinese scientists recently announced they successfully sent entangled photons from an orbiting “quantum” satellite to three separate base stations back on Earth.
AI is based on the principle of learning from experience hence Quantum computing can be applied to achieve it in very fast manner by giving rapid and accurate feedback until the computer program appears to exhibit “intelligence.”Lockheed Martin plans to use its D-Wave quantum computer to test autopilot software that is currently too complex for classical computers, and Google is using a quantum computer to design software that can distinguish cars from landmarks.
The ability to better predict the weather would have enormous benefit t, not to mention more time to take cover from disasters and ability to plan disaster recovery.
Building this kind of algorithm has been a goal of scientists; the equations governing such processes contain many, many variables, making classical simulation lengthy while it is expected to be done by Quantum computers more fast and accurately.
Predicting market is an all-time dream of an investor, One immediate advantage is that the randomness inherent to quantum computers is corresponding to the speculative nature of financial markets.
Helps to find the optimum configurations for chemical reactions which is very difficult for classic computers as it can analysethe simplest molecules.Google has already made progress in this field by simulating the energy of hydrogen molecules. This will help to build more efficient products, from solar cells to pharmaceutical drugs.
List of Quantum Computing Companies
Google – Mountain View, CA, USA
AmberFlux –Hyderabad, India
Strangeworks – Austin, Texas, USA
Zapata Computing – Boston, MA, USA
Hitachi – Tokyo, Japan
Microsoft – Redmond, WA, USA
IBM – Armonk, NY, USA
D-Wave Systems – Burnaby, Canada
ID Quantique – Geneva, Switzerland
Infineon Technologies – Neubiberg, Germany
Intel – Santa Clara, CA, USA
Imec – Belgium
Baidu – Beijing, China
Atos – Bezons, France