what is quantum computing 
quantum computing is an area of computer science that uses the principles of quantum theory quantum theory explains the behavior of energy and material on the atomic and subatomic levels quantum computing uses subatomic particles such as electrons or photons quantum bits or qubits allow these particles to exist in more than one state i e 1 and 0 at the same time theoretically linked qubits can exploit the interference between their wave like quantum states to perform calculations that might otherwise take millions of years 1classical computers today employ a stream of electrical impulses 1 and 0 in a binary manner to encode information in bits this restricts their processing ability compared to quantum computing understanding quantum computingthe field of quantum computing emerged in the 1980s it was discovered that certain computational problems could be tackled more efficiently with quantum algorithms than with their classical counterparts 2quantum computing has the capability to sift through huge numbers of possibilities and extract potential solutions to complex problems and challenges where classical computers store information as bits with either 0s or 1s quantum computers use qubits qubits carry information in a quantum state that engages 0 and 1 in a multidimensional way 1such massive computing potential and the projected market size for its use have attracted the attention of some of the most prominent companies 3 these include ibm microsoft google d waves systems alibaba nokia intel airbus hp toshiba mitsubishi sk telecom nec raytheon lockheed martin rigetti biogen volkswagen and amgen uses and benefits of quantum computingquantum computing could contribute greatly to the fields of security finance military affairs and intelligence drug design and discovery aerospace designing utilities nuclear fusion polymer design machine learning artificial intelligence ai big data search and digital manufacturing quantum computers could be used to improve the secure sharing of information or to improve radars and their ability to detect missiles and aircraft another area where quantum computing is expected to help is the environment and keeping water clean with chemical sensors 4here are some potential benefits of quantum computing 5