A quantum computer instead uses qubits that can be in arbitrary *superpositions of two states. But before we get to the quantum winter, let me briefly summarize how quantum computers work and what their problems are.Ī conventional computer works with bits that take on one of two discrete values. This scenario has been dubbed the “quantum winter”. This’ll cause a sudden decline of investment in quantum tech overall and be the start of a difficult time for research and development. This bubble of inflated promises will eventually burst. The only way in I can see this coming true is that it’ll produce more carbon emissions. For example, at a recent Quantum Computing conference in London, the managing director of research at Bank of America said that quantum computing will be “bigger than fire”. Problem is, a lot of CEOs in industry and the financial sector can’t tell a bra from a ket and believe that quantum computing is actually going to be relevant for their business, and that it’s going to be relevant soon. That’s a world record, hurray, but what are you going to do with it? They just produced a random distribution that would take a really long time to calculate by any other means. Quantum advantage has indeed been demonstrated for some quantum computers but that just means the quantum computer did something faster than a conventional computer, not that this was of any use for real world issues. After creating a lot of fog about superpositions and interference, they explain that quantum computers are close to showing “quantum advantage” and that “Quantum advantage, therefore, can be interpreted as being when problem-solving power can be applied to real world issues, which makes it much more interesting for investors.” Here is an example of some recent quantum hype, from a website called “Investors Chronicle” in an article titled “Quantum computing: a new industrial revolution”. It’s not just that no one has done it, no one knows if it’s even possible, because weather is a non-linear system whereas quantum mechanics is a linear theory.
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Last time I looked, no one had any idea how to do a weather forecast on a quantum computer. This company also recently published a blogpost titled “ Six reasons Liz Truss needs a quantum computer” which explains for example, “Quantum computers are suited to modelling complex systems, making them better at forecasting both near-term weather patterns and the long-term effects of climate change.” Or here’s one called “ universal quantum” which has a “fault tolerant team” that “embraces entanglement” and helps everyone find a “super position”. Some of them don’t find the way back from the bathroom. For example, there’s a startup called “ multiverse” that is “Working with customers in more than 10 verticals”. Though I admire the optimism of the quantum computing believers and also the vocabulary. It’s not going to change the world, it’ll have some niche applications at best, and it’s going to take much longer than many start-ups want you to believe. Quantum computers are promising technology, yes, but the same can be said about nuclear fusion and look how that worked out.Ī lot of physicists, me included, have warned that quantum computing is being oversold. And then there is quantum computing which according to countless headlines is going to revolutionize the world.
On the other hand, you have those quantum things that you read a lot about but that no one needs or wants, like the quantum internet. You can learn more about this in my earlier video. But it’s really promising and already being used by scientists to improve their own experiments. You basically never read anything about this. That’s not a mispronunciation of meteorology, that’s making better measurements with quantum effects. There are several different quantum technologies, and as a rule of thumb, the fewer headlines they make, the more promising they are. But if so much of quantum computing is hype then why are companies like Google and IBM pouring so much money into it, what’ll happen when the investment bubble bursts, what’s the “quantum winter”, and what does it mean for all of us? That’s what we’ll talk about today. It’s also created a lot of hype, especially around quantum computing. This has had a dramatic impact on quantum physics research in the past decade. But it’s not just governments who think quantum everything is where your taxes should go, business investors and companies are willing to putting in big money, too. Quantum technology current attracts a lot of attention and money, which might explain why they’re missing on my end.
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