Last Tuesday was a bit hectic for me as I tried to coordinate the last minute changes needed to put two papers on the arXiv servers for the next day. The two articles which are now available are numbered 1111.6919 and 1111.6940: Calculating Non-adiabatic Pressure Perturbations during Multi-field Inflation Ian Huston, Adam J. Christopherson Abstract: Isocurvature perturbations naturally occur in models of inflation consisting of more than one scalar field.

This is a slightly more technical post than usual but having figured out how to do something quite esoteric in Matplotlib I thought I would write it down to save me remembering. I have been making quite a few plots recently for a paper which should hit the arXiv very soon. The Python plotting package Matplotlib has been indispensable in this regard, especially as I took the effort of creating a script which creates all the plots.

Someone asked me how I achieved the effects on my slides in the talk I gave at QMUL, so having written them an email outlining all the customisations I usually make, I thought the subject might be worthy of a blogpost. I use the Beamer package for LaTeX which is a great way to include mathematics in your slides, and is pretty straightforward to use if you are proficient with LaTeX.