AI 中文总结
研究量子接触过程离散版本，通过数值分析发现其与连续时间版本相变所属普适类不同，差异源于离散化细节，构建插值方法，证明普适类修改源于相消干涉效应，揭示量子力学起源。
AI 中文摘要
我们对量子接触过程的离散版本进行了数值分析，这是一个非平衡模型，存在相干感染过程和耗散恢复过程之间的竞争。此前，连续时间版本被认为在一个新的量子普适类中存在相变，而相关过程的实验研究表明该相变属于经典定向渗流类。我们证明这些差异源于过程离散化的细节，并构建了一种系统方法来在这些结果之间进行连续插值。最后，我们提供证据表明普适类的修改是由于相消干涉效应，显示出明显的量子力学起源。
英文摘要
We numerically analyze a discretized version of the quantum contact process, a non-equilibrium model having a competition between a coherent infection process and a dissipative recovery process. Previously, the continuous-time version has been discussed to have a phase transition in a novel quantum universality class, while experimental investigations of a related process have pointed towards the transition being in the classical directed percolation class. We demonstrate that these differences stem from details of the discretization of the process and construct a systematic way to continuously interpolate between these results. Finally, we provide evidence that the modification of the universality class is due to destructive interference effects, showing a clear quantum-mechanical origin.
Comments6 pages, 4 figures
