266 citations · 1k across the 19 of their papers we have counts for
19 papers
Observing the Multiverse with Cosmic Wakes
Matthew Kleban, Thomas S. Levi, Kris Sigurdson
Current theories of the origin of the Universe, including string theory, predict the existence of a multiverse containing many bubble universes. These bubble universes will generic…
Vacuum decay in multidimensional field landscapes: thin, thick and intersecting walls
Vijay Balasubramanian, Bartlomiej Czech, Klaus Larjo +1
We study tunneling between vacua in multi-dimensional field spaces. Working in the strict thin wall approximation, we find that the conventional instantons for false vacuum decay d…
Polarizing Bubble Collisions
Bartlomiej Czech, Matthew Kleban, Klaus Larjo +2
We predict the polarization of cosmic microwave background (CMB) photons that results from a cosmic bubble collision. The polarization is purely E-mode, symmetric around the axis p…
Twisted Inflation
Joshua L. Davis, Thomas S. Levi, Mark Van Raamsdonk +1
We present a new mechanism for slow-roll inflation based on higher dimensional supersymmetric gauge theory compactified to four dimensions with twisted (supersymmetry breaking) bou…
Bubble, Bubble, Flow and Hubble: Large Scale Galaxy Flow from Cosmological Bubble Collisions
Klaus Larjo, Thomas S. Levi
We study large scale structure in the cosmology of Coleman-de Luccia bubble collisions. Within a set of controlled approximations we calculate the effects on galaxy motion seen fro…
Godel space from wrapped M2-branes
Thomas S. Levi, Joris Raeymaekers, Dieter Van den Bleeken +2
We show that M-theory admits a supersymmetric compactification to the Godel universe of the form Godel3 x S2 x CY3. We interpret this geometry as coming from the backreaction of M2…