Journal
NEW JOURNAL OF PHYSICS
Volume 23, Issue 8, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1367-2630/ac0f18
Keywords
entropy production; uncertainty relations; hair-cell bundle; irreversibility; active matter
Categories
Funding
- French National Agency for Research [ANR-11-BSV5 0011, ANR-16-CE13-0015]
- Labex Cell(n)Scale [ANR-11-LABX-0038, ANR-10-IDEX-0001-02]
- Spanish Government [FIS-2017-83706-R]
- Agence Nationale de la Recherche (ANR) [ANR-11-BSV5-0011, ANR-16-CE13-0015] Funding Source: Agence Nationale de la Recherche (ANR)
Ask authors/readers for more resources
This study introduces lower bounds for the rate of entropy production of an active stochastic process by quantifying the irreversibility of stochastic traces obtained from mesoscopic degrees of freedom. The analysis reveals irreversibility in active oscillations and estimates an associated rate of entropy production. Experimental recordings suggest that measuring both the tip position of the hair bundle and the mechano-electrical transduction current can provide tighter lower bounds for the rate of entropy production.
We introduce lower bounds for the rate of entropy production of an active stochastic process by quantifying the irreversibility of stochastic traces obtained from mesoscopic degrees of freedom. Our measures of irreversibility reveal signatures of time's arrow and provide bounds for entropy production even in the case of active fluctuations that have no drift. We apply these irreversibility measures to experimental recordings of spontaneous hair-bundle oscillations in mechanosensory hair cells from the ear of the bullfrog. By analyzing the fluctuations of only the tip position of hair bundles, we reveal irreversibility in active oscillations and estimate an associated rate of entropy production of at least similar to 3k (B)/s, on average. Applying thermodynamic uncertainty relations, we predict that measuring both the tip position of the hair bundle and the mechano-electrical transduction current that enters the hair cell leads to tighter lower bounds for the rate of entropy production, up to similar to 10(3) k (B)/s in the oscillatory regime.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available