925 citations · 5.2k across the 88 of their papers we have counts for
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Magnetic Fields from Heterotic Cosmic Strings
Rhiannon Gwyn, Stephon Alexander, Robert H. Brandenberger +1
Large-scale magnetic fields are observed today to be coherent on galactic scales. While there exists an explanation for their amplification and their specific configuration in spir…
On The Warped Heterotic Axion
Keshav Dasgupta, Hassan Firouzjahi, Rhiannon Gwyn
We study the axion in a warped heterotic background. It is shown that the axion decay constant, f_a, is sensitive to the warped mass scale of the throat. As an explicit model, we c…
D-terms on the resolved conifold
Keshav Dasgupta, Paul Franche, Anke Knauf +1
We derive a novel deformation of the warped resolved conifold background with supersymmetry breaking ISD (1,2) fluxes by adding D7-branes to this type IIB theory. We find spontaneo…
A Study of Structure Formation and Reheating in the D3/D7 Brane Inflation Model
Robert H. Brandenberger, Keshav Dasgupta, Anne-Christine Davis
We study the spectrum of cosmological fluctuations in the D3/D7 brane inflationary universe with particular attention to the parametric excitation of entropy modes during the rehea…