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Anomalous scaling of dynamical large deviations of stationary Gaussian processes

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 نشر من قبل Baruch Meerson
 تاريخ النشر 2019
  مجال البحث فيزياء
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 تأليف Baruch Meerson




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Employing the optimal fluctuation method (OFM), we study the large deviation function of long-time averages $(1/T)int_{-T/2}^{T/2} x^n(t) dt$, $n=1,2, dots$, of centered stationary Gaussian processes. These processes are correlated and, in general, non-Markovian. We show that the anomalous scaling with time of the large-deviation function, recently observed for $n>2$ for the particular case of the Ornstein-Uhlenbeck process, holds for a whole class of stationary Gaussian processes.



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