14–25 Oct 2024
Albano Building 3
Europe/Stockholm timezone

Stochastic Resetting

21 Oct 2024, 10:00
1h
Albano 3: 4205 - SU Conference Room (40 seats) (Albano Building 3)

Albano 3: 4205 - SU Conference Room (40 seats)

Albano Building 3

40

Speaker

Satya Majumdar (CNRS, LPTMS, Universite Paris-Saclay)

Description

In this talk, I aim to give a pedagogical overview of the rapidly developing field of `stochastic resetting', relevant in many fields that typically involve a random searchprocess. Stochastic resetting simply means interrupting the natural dynamics of a system at

random times and reset the system back to its initial condition. This resetting move breaks detailed balance and drives the system into a nonequilibrium stationary state. The approach to the stationary state is accompanied by an unusual ‘dynamical phase transition’. Moreover, the mean first-passage time to a fixed target becomes a minimum at an optimal value of the resetting rate. This makes the diffusive search process more efficient. Recent experiments in optical traps have verified some of the theoretical predictions, but also have raised new interesting questions. Going beyond the classical regime, there have been recent developments in quantum resetting also. I hope to explain why stochastic resetting has emerged in recent years as an exciting field of research in nonequilibrium statistical
physics.

Presentation materials