Active Matter Update
Review: Temperature and Activity
| Temperature | Activity |
|---|---|
Brownian thermostat set to some \(T\) | Brownian thermostat set to \(T=1\) |
Thermostat keeps \(T\) fixed | Activity raises temperature due to energy input |
Review: Temperature and Activity
Plan: Use a Harmonic Potential
The current repulsive Lennard-Jones may be too similar to hard-spheres, and may be unaffected by \(20 k_B T\) "jolts"
A softer potential may provide lower "barriers" that can be jumped with a \(20 k_B T\) "jolt"
Results: Harmonic Potential
Results: Harmonic Potential
Thought: Perhaps its that the longer the plateau, the greater the effect of random activity.
Review: Maximal \(\alpha_2\)
Review: Maximal \(\alpha_2\)
From the MSDs, we get \(\alpha_2\):
Review: Maximal \(\alpha_2\)
Some simulations, however, have not relaxed in the time I left them running.
Review: Maximal \(\alpha_2\)
Simulations that have not relaxed do not have fixed results. If we remove those simulations, this is the plot of \(\alpha_2\) we are left with.
