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Center for Astrophysics Research and Technologies Seminar Series Information


Events Calendar

First-Passage Processes in Physics, Biology, and Beyond

Friday September 22, 2023
3:30 pm

 Presenter:  Prof. Sid Redner (Santa Fe Institute)
 Series:  Physics and Astronomy Colloquium
 Abstract:  A fundamental aspect of a random walk is: when does it reach a specified threshold position for the first time? This first-passage time, and more generally, the distribution of first passage times underlies many non-equilibrium phenomena, such as the triggering of integrate and fire neurons, the statistics of cell division, and the execution of stock options. The computation of the first-passage time and its distribution is both simple and beautiful, with profound connections to electrostatic potential theory. I will present some aspects of these fundamentals and then discuss two applications of first-passage ideas: the classic problem of cell reception and a toy model of wealth sharing.
 Host:  Mousumi Roy
 Location:  PAIS-1100, PAIS

Disability Notice If you need an auxiliary aid or service to attend any Department of Physics and Astronomy event, please contact the department (phone: 505 277-2616; email: physics@unm.edu) as far in advance as possible to ensure you are accommodated.