Fancy Refrigeration to Control Quantum Chips
In-Fridge Controller Could Scale Up Quantum Computers
University of Chicago Department of Computer Science, January 10, 2022
Scientists at the University of Chicago were able to control quantum chips by routing signals within a dilution refrigerator using a classical controller operating at room temperature. The researchers confirmed the execution of low-error two-quantum bit (qubit) operations using Superconducting Single Flux Quantum (SFQ) pulses. SFQ is a classical logic technology that can function within the quantum fridge with low power consumption, to enable an in-fridge controller with maximized scalability. This achievement is a critical step toward realizing universal quantum computing at large scales. ...
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