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Updated: Aug 12, 2025

Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro
Published on: August 28, 2019
Bona fide stochastic resonance under nonGaussian active fluctuations
Govind Paneru1,2, Tsvi Tlusty1,2, Hyuk Kyu Pak1,2
1Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea. tsvitlusty@gmail.com.
Abstract:
We report on the experimental observation of stochastic resonance (SR) in a nonGaussian active bath without any periodic modulation. A Brownian particle hopping in a nanoscale double-well potential under the influence of nonGaussian correlated noise, with mean interval τP and correlation time τc, shows a series of equally-spaced peaks in the residence time distribution at integral multiples of τP. The strength of the first peak is found to be maximum when the mean residence time d matches the double condition, 4τc ≈ τP ≈ d/2, demonstrating a new type of bona fide SR. The experimental findings agree with a simple model that explains the emergence of SR without periodic modulation of the double-well potential. Additionally, we show that generic SR under periodic modulation, known to degrade in strongly correlated continuous noise, is recovered by the discrete nonGaussian kicks.
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