Current fluctuations in reset and run-and-tumble processes
Current fluctuations in reset and run-and-tumble processes
- Event time: 11:30am until 12:30pm
- Event date: 8th April 2020
- Speaker: Dr Rosemary Harris (Queen Mary University of London)
- Location: Online
Event details
I will present work on current fluctuations in stochastic
processes with resetting, demonstrating in particular how phase
transitions in the large deviations can be understood via a mapping to the
classic Poland-Scheraga model for DNA denaturation [R. J. Harris and H.
Touchette, J. Phys. A: Math. Theor. 50, 10LT01 (2017)]. This approach can
be extended to treat the case where the dynamics between resets depends on
the value of a parameter fixed at the last reset and, in this context, I
will briefly discuss the application to run-and-tumble models of bacterial
dynamics. Finally, I will mention the recent development of a
"Thermodynamic Uncertainty Relation" which applies for such
run-and-tumble–type processes [M. Shreshtha and R. J. Harris, EPL
(Europhysics Letters) 126, 40007 (2019)].
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