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November 1, 2002

Maldacena on Inflation

Many people have been hoping recently that observations of the cosmic microwave background might provide a “window” into high energy physics well beyond the energy scales accessible in terrestrial accelerators.

So far, however, a concrete (and detectable!) “signal” to look for has proven elusive.

Juan Maldacena has a really nice paper on the leading non-gaussian contributions to the fluctuations in a slow-roll inflationary model. He computes the 3-point functions of scalar and tensor fluctuations. The effect is order (H/Mpl)4, and so probably unobservably small.

Still, a nifty computation.

Posted by distler at November 1, 2002 12:18 PM

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