Abstract
Modeling noisy oscillations of active systems is one of the current challenges in physics and biology. Because the physical mechanisms of such processes are often difficult to identify, we propose a linear stochastic model driven by a non-Markovian bistable noise that is capable of generating self-sustained periodic oscillation. We derive analytical predictions for most relevant dynamical and thermodynamic properties of the model. This minimal model turns out to describe accurately bistablelike oscillatory motion of hair bundles in bullfrog sacculus, extracted from experimental data. Based on and in agreement with these data, we estimate the power required to sustain such active oscillations to be of the order of 100 kBT per oscillation cycle.
Original language | English |
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Article number | 030603 |
Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Physical Review Letters |
Volume | 129 |
Issue number | 3 |
DOIs | |
Publication status | Published - 15 Jul 2022 |
Bibliographical note
Funding Information:R. G. A. was supported by Howard Hughes Medical Institute, of which A. J. H. is an Investigator. A. G. acknowledges support from MIUR PRIN project “Coarse-grained description for nonequilibrium systems and transport phenomena (CO-NEST)” Grant No. 201798CZL.
Publisher Copyright:
© 2022 American Physical Society.
Funding
R. G. A. was supported by Howard Hughes Medical Institute, of which A. J. H. is an Investigator. A. G. acknowledges support from MIUR PRIN project “Coarse-grained description for nonequilibrium systems and transport phenomena (CO-NEST)” Grant No. 201798CZL.
Keywords
- Adaptation
- Dynamics
- Hair-cells
- Telegraph noise
- Transduction