Quantum computing for real IT specialists
Quantum computing is often mentioned in the news: China has teleported a qubit from Earth to a satellite; Shor's algorithm has compromised the encryption methods currently used; quantum key distribution will make encryption a reliable means of protection again; Grover's algorithm will increase the speed of data retrieval. But what does all this really mean? How does it all work? Is it possible to master this topic without knowledge of mathematics? Not if you want to really understand the essence of what is happening. The basic ideas originate in quantum mechanics and often contradict common sense. Attempts to describe them in ordinary words are doomed to failure, because these phenomena are not reflected in everyday life. Worse, verbal descriptions often give the impression that we have understood something, although in fact everything is not so bad - we do not have to delve much into mathematics, it is enough that they tried to drive into our heads in high school. Quantum computing is an amazing fusion of quantum physics and computer science, combining the brightest ideas from physics of the twentieth century and allowing a new look at computer technology.
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