论文标题
关于“量子至上”实验的含义
On the meaning of "quantum supremacy" experiments
论文作者
论文摘要
最近报道的实验结果声称Google量子设备实现了“量子至上”。 Google团队基于Josephson Junction技术构建了一个量子混沌系统，该系统无法由当今的超级计算机可靠地模拟。但是，使用石英钟的可用技术，可以为正确设计的微型机械设备（例如定期强迫悬挂振荡器）实现类似的“至高无上”。还提醒人们，古典和量子混沌系统的行为类似。因此，在这种情况下，人们应该谈论“模拟至高无上”，而不是“量子至上”，即使现在机械模拟计算机也可以胜过超级超级计算机，而当计算任务可以减少到混乱系统产生的奇异量测量中时。
The recently reported experimental results claiming "quantum supremacy" achieved by Google quantum device are critically discussed. The Google team constructed a quantum chaotic system based on Josephson junction technology which cannot be reliably simulated by the present day supercomputers. However, the similar "supremacy" can be realized for properly designed micro-mechanical devices, like periodically forced Duffing oscillator, using the available technology of quartz clocks. It is also reminded that classical and quantum chaotic systems behave in a similar way. Therefore, in this case, one should speak rather about the "analog supremacy" than "quantum supremacy" what means that even now mechanical analog computers can outperform supercomputers when the computational task can be reduced to sampling of ergodic measures generated by chaotic systems.
