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Accueil du site > Seminars > Séminaires théorie > Theory Club 3 Avril 2015 à 12:30 en salle 646A. Shouwen Wang: "Energy dissipation and adaptation in E.coli sensory system".

Theory Club 3 Avril 2015 à 12:30 en salle 646A. Shouwen Wang: "Energy dissipation and adaptation in E.coli sensory system"

Unless otherwise stated, seminars and defences take place at 11:30 in room 454A of Condorcet building.


Energy dissipation and adaptation in E.coli sensory system

Shouwen Wang (Tsinghua University, Beijing)

Abstract: Sensory adaptation allows a receptor to recover its sensitivity after transient response to a shift in extracellular stimulus. The energy cost for accurate adaptation is addressed recently by Lan et al. in a kinetic model that implements measurement and reset of receptor activity in concert [Nat. Phys.8, 422 (2012)]. Based on exact treatments of both continuous and discrete versions of the model, we show that the dissipated heat during measurement obeys the Harada-Sasa equality, while reset incurs an additional energy cost in line with the Landauers principle. We propose a new trade-off relation between the measurement uncertainty, measurement time, and the dissipated power.

3 Avril 2015 à 12:30 en salle 646A


Contact : Équipe séminaires / Seminar team - Published on / Publié le 30 March 2015


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