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Detailed balance: $\pii P{i\to j} = \pij P{j \to i}$
满足细致平衡条件=可逆=entropy production为0
entropy production -> dissipation
Fisher information: quantifies the maximal precision with which an operator can be estimated (related to the quantum Cramer-Rao bound).
also related to entanglement??
QSL (quantum speed limit) is for the system, and TUR is the bound for the environment.