513 citations · 6.8k across the 165 of their papers we have counts for
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Cusps on cosmic superstrings with junctions
Anne-Christine Davis, William Nelson, Senthooran Rajamanoharan +1
The existence of cusps on non-periodic strings ending on D-branes is demonstrated and the conditions, for which such cusps are generic, are derived. The dynamics of F-, D-string an…
Bogomol'nyi Bounds for Gravitational Cosmic Strings
Anne-Christine Davis, Senthooran Rajamanoharan
We present a new method for finding lower bounds on the energy of topological cosmic string solutions in gravitational field theories. This new method produces bounds that are vali…
Detecting Chameleons: The Astronomical Polarization Produced by Chameleon-like Scalar Fields
Clare Burrage, Anne-Christine Davis, Douglas J. Shaw
We show that a coupling between chameleon-like scalar fields and photons induces linear and circular polarization in the light from astrophysical sources. In this context chameleon…
f(R) Gravity and Chameleon Theories
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +1
We analyse f(R) modifications of Einstein's gravity as dark energy models in the light of their connection with chameleon theories. Formulated as scalar-tensor theories, the f(R) t…
Staggered Multi-Field Inflation
Diana Battefeld, Thorsten Battefeld, Anne-Christine Davis
We investigate multi-field inflationary scenarios with fields that drop out of the model in a staggered fashion. This feature is natural in certain multi-field inflationary setups…
Racetrack Inflation and Cosmic Strings
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +3
We consider the coupling of racetrack inflation to matter fields as realised in the D3/D7 brane system. In particular, we investigate the possibility of cosmic string formation in…
Brane Inflation and Defect Formation
A. C. Davis, P. Brax, C. van de Bruck
Brane inflation and the production of topological defects at the end of the inflationary phase are discussed. After a description of the inflationary setup we discuss the propertie…
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…