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QuantumCakeIsALie

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  1. That's a very great initiative, kudos. It's refreshing to see genuine interest in physics from a channel like yours that reaches a wide audience that's not necessarily actively looking for it. Great outreach! So when do you guys start a Linus Science Tips Channel?
  2. Quantum computers will be great at solving mostly some specific (but really important) optimisation, simulation, and crypto problems. They'd be much worse than classical CPU for gaming or text processing. They'd probably be less performant than an abacus to run an OS. Think of it this way: planes are great to travel the world, but they'd be the worse to commute to work every morning. Planes were a revolution in transport, but they didn't replace the car. They solved a few task more effectively. Back to quantum computers, I doubt any member of the general public will ever use them directly, let alone own one. They will probably be in server farms in their cryostat, with a cloud-based interface to access them (e.g. Google would love those for searches, they would dramatically speed up "reverse dictionary search", look it up). IBM already does that with their IBM Q Experience, I suggest you look it up, it's great. Maybe you could buy a quantum coprocessor in 3019, but a mainstream full Quantum CPU computer isn't happening in the foreseeable distant future, because there's no point. Just like people won't stop driving cars altogether to solely use Rockets for transportation because they're better. There's already a handful of programming languages built around qubits, IBM's QSAM is a great example, and even compilers to optimise quantum circuits (i.e. series of operations done on qubits). Whereas the classical CPU was kind of figured out as it was developed, there's already a tremendous amount of knowledge and research about quantum algorithms and quantum computing; quantum physics has been studied since the thirties. It's just an incredible technical challenge to build actual qubits. More precisely, the quantum processing of information is very well understood nowadays and quantum information is a blooming field. When someone finally builds a working fault-tolerant quantum CPU, there won't be a lack of software at all. If we succeed, it will be great for Science, and not just physics but also chemistry, pharmacology, maths, ... you name it. Closer to the everyday person on the internet, it might cost Google marginally less to handle your searches, and secure the web even more. It just won't run Crysis.
  3. Registered just for this. This is great surprising content! Did LIGO reach out to you or did you contacted them out of interest? The video doesn't come across as a command/order. Anyhow, great content well explained. PS: Your squeezing schematics shows amplitude squeezing, not phase squeezing. Phase squeezing would have the ellipse rotated 90° around its center compared to that. They do use phase squeezing though, as per their 2013 Nature Photonics paper (http://www.nature.com/doifinder/10.1038/nphoton.2013.177). It's just that the graphic doesn't match it.
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