From \infty to 0: Entropy production of spatially-varying population dynamics under coarse-graining

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• Elsen Tjhung (The Open University)
• Friday 04 October 2024, 16:00-16:20
• Seminar Room 1, Newton Institute.

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SSDW06 - Stochastic Systems in Active Matter

Active and biological matter are characterized by the violation of time-reversal symmetry (TRS) at the microscopic scale. For example, while a cell can divide into two daughter cells, the reverse process—two cells merging into one—is statistically impossible. This inherently time-asymmetric stochastic behaviour results in an infinite rate of entropy production. In this talk, I will introduce a general formalism to calculate the entropy production of birth-and-death processes at all levels of coarse-graining. Using this formalism, we will address and tame the infinite entropy production encountered previously. Co-author: Sam Cameron (The Open University)

This talk is part of the Isaac Newton Institute Seminar Series series.

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