arxivquant-phcs.DScs.LG2026-06-29
Learning the structure of open quantum systems
Laura Lewis, Ewin Tang, John Wright
We design an algorithm for learning the coefficients of an $n$-qubit constant-local Lindbladian to $\varepsilon$ error with $O(g d^2 \log(n) / \varepsilon^2)$ total evolution time, where $g$ is the single-site energy and $d$ is the (approximate) degree of the interaction graph. T…