In 1985, experiments revealed the quantum behaviour of a macroscopic degree of freedom: the phase difference across a Josephson junction. The authors recount the history of this milestone for the development of superconducting quantum circuits.

中文翻译：

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量子约瑟夫森结电路和人造原子的曙光

1985年，实验揭示了宏观自由度的量子行为：跨越约瑟夫森结的相位差。作者为超导量子电路的发展叙述了这一里程碑式的历史。