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This is a syndicated version of my weekly e-mail round-up of news about Quantum Computing. to subscribe to updates and check out previous issues.☁️ Hello from chilly London! This weekend I came back from Mexico, and although the jet-lag is pretty intense, I’m back to work and learning about quantum computing once more. In news we’ve got a few interesting articles about things like the difficulty in finding components for building a quantum computer, as well as non-cryptography related applications, and more. We’ll also be learning a bit about quantum tunneling as well as sharing a resource for finding a job in quantum computing! Looking for a particular area of quantum computing you’d like to see covered in the next issue? and let me know!
The quantum tunneling effect is a quantum phenomenon which occurs when particles move through a barrier that, according to the theories of classical physics, should be impossible to move through. The barrier may be a physically impassable medium, such as an insulator or a vacuum, or a region of high potential energy.
In classical mechanics, when a particle has insufficient energy, it would not be able to overcome a potential barrier. In the quantum world, however, particles can often behave like waves. On encountering a barrier, a quantum wave will not end abruptly; rather, its amplitude will decrease exponentially. This drop in amplitude corresponds to a drop in the probability of finding a particle further into the barrier. If the barrier is thin enough, then the amplitude may be non-zero on the other side. This would imply that there is a finite probability that some of the particles will tunnel through the barrier.As always, Wikipedia has an on this topic with a lot more details and is well worth a look.
— While traveling around to give talks about quantum computing, I’ve noticed two things — the enthusiasm of our growing community, and the frequency of the following question: “I don’t know much about…
— Quantum machines will deliver the next great leap forward in computing, but researchers building them can’t easily get some of the exotic components they need.
— When it comes to securing data, it is not too early to start anticipating the future threat of quantum computing. You need to plan today for the Quantum future. I talked to IBM — a company that understands both side of this problem.
— Disregard the alarmist headlines: Quantum computers won’t end privacy online. In fact, their most revolutionary impact may be felt offline.
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ExxonMobil has become the first energy company to join the IBM Q Network, a worldwide community that aims to advance quantum computing and explore science and business applications.
— Quantum computers are probably the most misunderstood of nascent technologies, which makes sense, because their very basics rely on the hardest-to-grasp concepts of physics. That’s led to people making some ridiculous claims, like that they give you “god-like powers” and that they’re an “imminent threat.”