For any current J in a stationary non-equilibrium process, Var(J)/⟨J⟩² ≥ 2k_B/⟨σ⟩, tying precision directly to entropy production. Operational consequence: more accurate nanoscale clocks, motors, or sensors dissipate more.
For any current J in a stationary non-equilibrium process, Var(J)/⟨J⟩² ≥ 2k_B/⟨σ⟩, tying precision directly to entropy production. Operational consequence: more accurate nanoscale clocks, motors, or sensors dissipate more.