# Conditioned random walks

#### Conditioned random walks

- Event time: 11:30am until 12:30pm
- Event date: 16th May 2018
- Speaker: Dr Richard Blythe (School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) (James Clerk Maxwell Building (JCMB)) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

The random walk is a fundamental model in statistical physics for which many results are known, for example, the linear growth of the mean-square displacement over time. Sometimes we are interested in problems where the walk is constrained to reach a certain point (a target) after a certain amount of time. The statistics of the conditioned ensemble (i.e., the subset of walks that actually hit the desired target) is different from that of unconditioned (free) random walks. In this talk, I will explain why I am interested in this problem, rattle through a few approaches for studying the conditioned ensemble, and try and show some results.

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