Langevin ·
Equation
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.com · m dv/dt = −γv + ξ(t) · Brownian motion · fluctuation-dissipation
Relaxation τ = m/γ
—
⟨v²⟩ → k
B
T/m
—
phase
—
Brownian particle
Random kick ξ(t)
Drag −γv
Velocity autocorrelation
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.com · Langevin Equation