Quantum Computer Chips demonstrated at the highest temperature ever
In this blog, I am going to talk about Quantum Computer Chips demonstrated at the highest temperature ever. Quantum computing is heating up. For the first time, quantum computer chips have been operated at a temperature above -272°C or 1 kelvin. That may still seem frigid, but it is just warm enough to potentially enable a huge leap in the capabilities.
Quantum computers are made of quantum bits, or qubits, which can be made in several different ways. One that is receiving attention from some of the field’s big players consists of electrons on a silicon chip.
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To keep the technology that cold, scientists need to use special cryogenic refrigeration techniques. Quantum Computer Chips demonstrated at the highest temperature ever.
But now, two teams of physicists, one in Australia, the other in the Netherlands have developed quantum technology in silicon that operates up to 1.5 Kelvin, they report in the journal Nature.
Eventually, for useful quantum computing, we will need to go to something like a million qubits, and this sort of brute force method, with one wire per qubit, won’t work any more,” says Menno Veldhorst at QuTech in the Netherlands. “It works for two qubits, but not for a million.
That jump in temperature might not seem like much to us, but that’s hot at the quantum scale and makes a huge difference, said Andrew Dzurak of the University of New South Wales and co-author of the Australian Research.
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Why is temperature such a big deal?
In traditional computing, bits are either 1 or 0, while in a quantum computer, qubits can be both numbers at the same time.
With the ability to perform multiple calculations at once, the hope is that quantum computers can rifle through huge databases in the quest to quickly solve problems for things such as drug development and complex algorithms.
Qubits have been traditionally refrigerated using two different types of helium isotopes, one of which can only be produced in nuclear reactors, to keep them close to absolute zero.
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