Quantum
Instability of Markov chains under infinitesimal coherent dissipation
Publication: quant-ph updates on arXiv.org
Author: Amir-Reza Negari, Yijian Zou, Timothy H. Hsieh
Source published: 15/10/2026, 04:00:00 UTC
Briefing created: 15/10/2026, 06:15:29 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 15/10/2026, 04:13:24 UTC.
Briefings
This article investigates Markov chain stability under infinitesimal coherent dissipation, specifically examining conditional mutual information growth. The authors demonstrate that arbitrarily short, strictly local Lindbladians can generate infinite Markov length from initial product states, challenging the assumption that Lieb-Robinson bounds limit this growth. They also construct strictly local Lindbladians converging rapidly to steady states with algebraically decaying conditional mutual information, showing that long-range correlations do not necessarily imply slow relaxation or phase instability. The study concludes that infinite Markov length does not inherently obstruct phase stability when suitably defined.
Key points
- Arbitrarily short strictly local Lindbladians can generate infinite Markov length from initial product states under local Lindbladian evolution.
- Strictly local Lindbladians can converge rapidly to steady states with algebraically decaying conditional mutual information despite long-range correlations.
Context and limitations
The study relies on theoretical construction within the framework of local Lindbladian evolution; specific numerical simulations or experimental validation are not provided in the evidence.
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