• 21 hours ago
Scientists develop record cold refrigerator that could unlock full potential of quantum computers

Its developers say the refrigerator can help pave the way for more reliable quantum computation.

READ MORE : http://www.euronews.com/2025/03/20/scientists-develop-record-cold-refrigerator-that-could-unlock-full-potential-of-quantum-co

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Transcript
00:00And we really had a desire to build a quantum machine, a thermal machine that was useful.
00:19And we found out that one of the leading technology for quantum computing, the one that used by
00:24Google or IBM, for example, they use the superconducting circuits that needs to stay very cold.
00:31And to initialize their bits, essentially, these modes, they need to be cooled down to
00:37very low temperature.
00:39And so we thought in thermodynamics, we know how to build refrigerators.
00:43And why don't we build a tiny refrigerator and attach to these bits so that they can
00:47get very cold when the computations start.
01:02This is needed because in computation, you need, of course, to be very precise.
01:07And the one basic requirement for any computer is that you know the state of your bits when
01:12you start.
01:14And knowing the state of the bits in this language is equivalent to making them really
01:19cold, which is what we did.
01:21So we can make sure we can start the quantum computer without making an error even before we start.
01:39They can actually come from the very same environment in which a quantum computer is
01:43housed. A quantum computer is itself kept very cold by a big machine, which in some
01:49sense resembles a conventional refrigerator or a fridge.
01:53And so there are already thermal elements at different temperature that can be utilized
01:59to perform the cooling process.

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