论文标题
关于无限投影的纠缠对手ANSATZ的稳定性,用于驱动的2D晶格
On the stability of the infinite Projected Entangled Pair Operator ansatz for driven-dissipative 2D lattices
论文作者
论文摘要
我们介绍了使用无限投影的纠缠对操作员(IPEPO)方法的驱动XYZ模型的时间进化计算,该方法由[A.引入。 Kshetrimayum,H。Weimer和R.Orús,Nat。社区。 8,1291(2017)]。我们探索该方法达到稳定状态的条件。特别是,我们研究了随着张量 - 网络ANSATZ的键键增加,显然融合计算可能变得不稳定的条件。我们讨论如何获得更可靠的结果。
We present calculations of the time-evolution of the driven-dissipative XYZ model using the infinite Projected Entangled Pair Operator (iPEPO) method, introduced by [A. Kshetrimayum, H. Weimer and R. Orús, Nat. Commun. 8, 1291 (2017)]. We explore the conditions under which this approach reaches a steady state. In particular, we study the conditions where apparently converged calculations may become unstable with increasing bond dimension of the tensor-network ansatz. We discuss how more reliable results could be obtained.