Understanding the emergence of objectivity from the quantum realm has been a long standing issue strongly related to the quantum to classical crossover. Quantum Darwinism (QD) provides an answer, interpreting objectivity as consensus between independent observers. Quantum computers provide an interesting platform for such experimental investigation of QD, fulfiling their initial intended purpose as quantum simulators. Here we assess to what degree current Noisy intermediate-scale quantum devices can be used as experimental platforms in the field of QD. We do this by simulating an exactly solvable stochastic collision model, taking advantage of the analytical solution to benchmark the experimental results.

从量子领域理解客观性的出现一直是一个长期存在的问题，与量子到经典的交叉密切相关。量子达尔文主义 (QD) 提供了一个答案，将客观性解释为独立观察者之间的共识。量子计算机为量子点的这种实验研究提供了一个有趣的平台，实现了它们作为量子模拟器的最初预期目的。在这里，我们评估了当前嘈杂的中等规模量子器件在多大程度上可以用作量子点领域的实验平台。我们通过模拟一个完全可解的随机碰撞模型来做到这一点，利用解析解来对实验结果进行基准测试。