Fluctuation
–Dissipation
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.com · Brownian kicks · Drag · D = k_BT/γ · Kubo
Noise ⟨ξ²⟩
0.0
Drag γ
1.0
k_BT·γ
locked
state
standby
Brownian particle
Random thermal kicks ξ(t)
Drag force −γv
Response / noise trace
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.com · Fluctuation-Dissipation