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The same can be said of Ohm's law.
You can repair Ohm's law by adding a fluctuation term
to the equation. The classic (and classical) analysis
[reference: Nyquist and Johnson] can be extended to the
Lagrangian/Hamiltonian/quantum regime [reference Yurke
and Denker] whereupon we learn that quantum fluctuations
and thermal fluctuations are just two sides of the same
elephant.