This is because it relies on a superconducting device called a Josephson junction to produce the qubits, in the form of specially tweaked electrons that are stable only at such low temperatures.

• 这是因为它依赖于一个名为约瑟夫森结的超导装置产生量子比特，这种被特别扭曲的电子只有在低温下才稳定。