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X-WR-CALNAME:Laboratoire de physique des Solides
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DTSTART;TZID=Europe/Paris:20260108T110000
DTEND;TZID=Europe/Paris:20260108T180000
DTSTAMP:20260105T101100
UID:MEC-fcf55a303b71b84d326fb1d06e332a26@lps.u-psud.fr
CREATED:20260105
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SUMMARY:Lucas Désoppi : Thermodynamic consistency of noise models in electrical circuits: From Brillouin’s paradox to nonlinear stochastic networks
DESCRIPTION:\nThe description of noise and dissipation in electrical circuits is a long-standing problem. Fluctuations induced by an ohmic resistor are well described by the Johnson-Nyquist model, leading to a relationship analogous to Einstein’s for Brownian motion, linking the diffusion coefficient to the value of the resistance.However, when considering a resistive component with a nonlinear current-voltage characteristic, adding a fluctuation term is not as simple as in the linear case. In fact, the naive approach of writing the simplest possible Langevin equation will generally lead to a conflict with the second law of thermodynamics: this is Brillouin’s paradox. However, it is possible to construct and classify an entire landscape of thermodynamically consistent models by reexamining the principle of detailed balance.\n\n\n\n\n
URL:https://www.lps.u-psud.fr/en/events/lucas-desoppi-thermodynamic-consistency-of-noise-models-in-electrical-circuits-from-brillouins-paradox-to-nonlinear-stochastic-networks/
CATEGORIES:Seminar SMQ,Seminars
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