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Title: On the stability of the infinite Projected Entangled Pair Operator ansatz for driven-dissipative 2D lattices
(Submitted on 5 Dec 2020 (v1), last revised 8 Feb 2021 (this version, v2))
Abstract: 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. Or\'us, 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.
Submission history
From: Dainius Kilda [view email][v1] Sat, 5 Dec 2020 18:33:24 GMT (1035kb,D)
[v2] Mon, 8 Feb 2021 23:33:21 GMT (1036kb,D)
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