Before revision: Master equations are commonly used to model the dynamics of physical systems . Surprisingly, many deterministic maps x \rightarrow f(x) cannot be implemented by any master equation, even approximately . This raises the question of how they arise in real-world systems like digital computers.
After revision: Master equations are commonly used to model the dynamics of physical systems . Surprisingly, many deterministic maps x \rightarrow f(x) cannot be implemented by any master equation, even approximately , which raises the question of how they arise in real-world systems like digital computers.