Brownian velocity fluctuations in liquids have fractal dimension 7/4 due to non-Markovian hydrodynamic thermal noise, establishing a new non-equilibrium universality class.
Thus L [ 1 − C(n) vv (t) ] ≃ ˆk(s) m s2 ∼ 1 s3/ 2 (28) and therefore, at short time scales 1 − C(n) vv (t) ∼ t1/ 2 (29) that implies ⟨(v(t + ∆ t) − v(t))2⟩eq ∼ ∆ t1/ 2 (30) i.e
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The fractal dimension of Brownian dynamics in liquids
Brownian velocity fluctuations in liquids have fractal dimension 7/4 due to non-Markovian hydrodynamic thermal noise, establishing a new non-equilibrium universality class.