Essential cooling system (IMAGE)
Caption
A dilution refrigerator is a cooling system that encloses a quantum computer and brings the qubits down to about 50 millikelvin, that is minus 273.1 degrees. When the cooling system is supplemented with a newly developed quantum refrigerator, which fits on a small chip, it is possible to reach record-low temperatures and bring the qubits down to about 22 millikelvin, which corresponds to minus 273.13 degrees. In the photo, the outer shells of the dilution refrigerator have been removed.
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Chalmers University of Technology
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