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4 papers · 2 filters
Supersymmetric codimension-two branes in six-dimensional gauged supergravity
Hyun Min Lee, Antonios Papazoglou
We consider the six-dimensional Salam-Sezgin supergravity in the presence of codimension-2 branes. In the case that the branes carry only tension, we provide a way to supersymmetri…
Enhanced Non-Gaussianity from Excited Initial States
R. Holman, Andrew J. Tolley
We use the techniques of effective field theory in an expanding universe to examine the effect of choosing an excited inflationary initial state built over the Bunch-Davies state o…
A Thermodynamic Interpretation of Time for Superstring Rolling Tachyons
Jimmy A. Hutasoit, Niko Jokela
Rolling tachyon backgrounds, arising from open strings on unstable branes in bosonic string theory, can be related to a simple statistical mechanical model - Coulomb gas of point c…
Gravitino in six-dimensional warped supergravity
Hyun Min Lee, Antonios Papazoglou
We consider the gravitino spectrum for the general warped solution in a specific six-dimensional gauged supergravity. We find that although the brane tensions introduced at the con…