From ExtremeTech
Quantum computing has been a major research topic for multiple companies the past few years, with D-Wave, IBM, and Intel all launching their own systems and improving them at a fairly rapid clip. At CES 2018 this week, Intel’s CEO, Brian Krzanich, declared the company’s new 49-qubit quantum computer represented a step towards “quantum supremacy.”Read more: https://www.extremetech.com/computing/261734-intel-unveils-new-quantum-computer-declares-quantum-breakthroughA 49 qubit system is a major advance for Intel, which just demonstrated a 17-qubit system two months ago. Intel’s working with the Netherlands-based Qutech on this project, and expanding the number of qubits is key to creating quantum computers that can deliver real-world results.
When Intel launched its 17-qubit system in October, it wrote: “Qubits are tremendously fragile: Any noise or unintended observation of them can cause data loss. This fragility requires them to operate at about 20 millikelvin – 250 times colder than deep space.” This is also why we won’t be seeing quantum computers in anyone’s house at any point. While early classical computers were also room-sized and required commensurate cooling solutions, there’s no known way to build hand-sized or even desktop quantum machines that incorporate the cooling required.
So don't get excited about owning one of these anytime soon as it requires temperatures 250 times colder than deep space. We don't need a quantum computer in every home though for there to be ramifications to crypto. What if one of these researchers at a mega facility decides to try brute forcing bitcoin keys? Could the quantum computing revolution bring about the end of all current cryptos that aren't quantum resistant?
I dunno!
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