Tag Archives: Inflation

Numerical Calculation of Second Order Perturbations

By Ian | Published: July 23, 2009

My new paper, written with Karim Malik, has just been released into the wild. We show that it is possible to numerically simulate second order perturbations for a single scalar field with a canonical action. I’ve been working on this for a long time and learned a lot about the mechanics of inflation in the [...]

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First talk imminent

By Ian | Published: June 20, 2007

So it turns out that I am going to give a talk at UK Cosmo next week. It’s only supposed to be 18 minutes long, which you might imagine wouldn’t be that difficult to put together, but as you can tell from the lack of posts here recently, I’ve been having some problems. The talk [...]

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First paper on the arXiv

By Ian | Published: May 3, 2007

[Shameless plug of my own work alert!] So today I finally became a ‘proper’ scientist and saw my name on the listings of the arXiv. Our new paper, Gravitational Wave constraints on DBI inflation, makes life difficult for the usual DBI brane inflation models by specifying some pretty strong limits on their existence, depending on [...]

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