# Responses to perturbations in Brownian dynamics simulations

#### Responses to perturbations in Brownian dynamics simulations

- Event time: 11:30am
- Event date: 14th March 2012
- Speaker: Professor Rosalind Allen (School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

In simulations it is often useful to compute how some quantity changes when we perturb the system. However it is time consuming to run multiple simulations for different values of the perturbation. In some cases this problem can be avoided using Einstein or Green-Kubo relations but this is not always possible. We have devised an algorithm for computing the response to perturbations in Brownian dynamics simulations which is generic: it works for any type of perturbation and does not assume equilibrium. I will explain what this algorithm is and show that it works for a simple example.

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