What is quantum computing? Quantum computing is one of the new innovations of the 21st Century alongside artificial intelligence and machine learning. Quantum computing gives us the potential to create computers that are far more powerful than anything we have had before and this means that we will be able to do things and solve problems that were previously impossible.
At a high level a quantum computer is a much more powerful and faster computer that uses different underlying technology than a regular computer. Quantum computers perform calculations based on the probability of an object's state before it is measured - instead of just 1s or 0s - which means they have the potential to process exponentially more data compared to classical computers. A single state - such as on or off, up or down, 1 or 0 - is called a bit while quantum computers use qubits. The area of physics known as quantum mechanics shows that, at the most fundamental level, classical physics theories no longer apply. This additional level of complexity means that quantum computers could eventually far surpass current computers in their ability to process information and do it quickly and accurately. Like any new innovation there are some facts and some myths floating around about quantum computing, to help people better understand this new and emerging area there are 5 things that you should know about quantum computing: 1) These computers will be much faster
Quantum computers are expected to be far faster than any machine that we have had previously. There is some conflicting information online about exactly how fast these machines may be but it’s expected to be anything from several thousands to several million times faster than the computers we use today. 2) It will affect user encryption
Today’s encryption algorithms are based on today's computing power which means once quantum computers become more popular there is a chance that our current encryption algorithms will not be sufficient to protect electronic communication. To fix this issue some people are looking into quantum cryptography as a more secure method of protecting electronic communications. 3) They operate at extremely cold temperatures
Quantum computers operating at extremely cold temperatures, the core of D-wave quantum computers operate at -460 F or -273 C, which is 0.02 degrees from absolute zero. The reason being is that he sub-atomic particles must be as close to zero as possible so that they can be accurately measured.
4) They incorporate some level of science fiction
The particles used in quantum computers can travel backward or forward in time and teleport between two positions (quantum tunneling), something that many people would have thought was pure science fiction. 5) They hint at the possibility of parallel universes
One suspected reason that these particles can travel backward and forward in time is that it involves the existence of parallel universes. It’s been theorized that qubits are able to exist in two states simultaneously because we are observing them in multiple universes simultaneously. Previously this type of talk was reserved for movies and TV shows but it seems like quantum computing and the research behind it is discovering that ideas that were thought to be solely science fiction may be real.
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