330 citations · 3.6k across the 68 of their papers we have counts for
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hep-th2007★ 113 cited
When Worlds Collide
Spencer Chang, Matthew Kleban, Thomas S. Levi
We analyze the cosmological signatures visible to an observer in a Coleman-de Luccia bubble when another such bubble collides with it. We use a gluing procedure to generalize the r…
hep-th2007★ 12 cited
Expanding F-Theory
Matthew Kleban, Michele Redi
We construct a general class of new time dependent solutions of non-linear sigma models coupled to gravity. These solutions describe configurations of expanding or contracting codi…
hep-th2007★ 12 cited
Cosmic 21-cm Fluctuations as a Probe of Fundamental Physics
Matthew Kleban, Kris Sigurdson, Ian Swanson
Fluctuations in high-redshift cosmic 21-cm radiation provide a new window for observing unconventional effects of high-energy physics in the primordial spectrum of density perturba…