On the stability of Cosmic String Y-junctions (2009)
Bevis, Neil, Copeland, Edmund J., Martin, Pierre-Yves, Niz, Gustavo, Pourtsidou, Alkistis, Saffin, Paul M., ...
We study the evolution of non-periodic cosmic string loops containing Y-junctions, such as may form during the evolution of a network of (p,q) cosmic superstrings. We set up and solve the Nambu-Goto...
Abelian Higgs Cosmic Strings: Small Scale Structure and Loops (2008)
Hindmarsh, Mark, Stuckey, Stephanie, Bevis, Neil
Classical lattice simulations of the Abelian Higgs model are used to investigate small scale structure and loop distributions in cosmic string networks. Use of the field theory ensures that the...
Cosmic string Y-junctions: a comparison between field theoretic and Nambu-Goto dynamics (2008)
We explore the formation of cosmic string Y-junctions when strings of two different types collide, which has recently become important since string theory can yield cosmic strings of distinct types....
Urrestilla, Jon, Mukherjee, Pia, Liddle, Andrew R., Bevis, Neil, Hindmarsh, Mark, Kunz, Martin
While observations indicate that the predominant source of cosmic inhomogeneities are adiabatic perturbations, there are a variety of candidates to provide auxiliary trace effects, including...
Cosmic microwave anisotropies from BPS semilocal strings (2007)
Urrestilla, Jon, Bevis, Neil, Hindmarsh, Mark, Kunz, Martin, Liddle, Andrew R.
We present the first ever calculation of cosmic microwave background CMB anisotropy power spectra from semilocal cosmic strings, obtained via simulations of a classical field theory. Semilocal...
CMB polarization power spectra contributions from a network of cosmic strings (2007)
Bevis, Neil, Hindmarsh, Mark, Kunz, Martin, Urrestilla, Jon
We present the first calculation of the possible (local) cosmic string contribution to the cosmic microwave background polarization spectra from simulations of a string network (rather than a...
Fitting CMB data with cosmic strings and inflation (2007)
Bevis, Neil, Hindmarsh, Mark, Kunz, Martin, Urrestilla, Jon
We perform a multiparameter likelihood analysis to compare measurements of the cosmic microwave background (CMB) power spectra with predictions from models involving cosmic strings. Adding strings to...
Bevis, Neil, Hindmarsh, Mark, Kunz, Martin, Urrestilla, Jon
We present the first field-theoretic calculations of the contribution made by cosmic strings to the temperature power spectrum of the cosmic microwave background (CMB). Unlike previous work, in which...
Van Kampen, Eelco, Percival, Will J., Crawford, Miller, Dunlop, James S., Scott, Susie E., Bevis, Neil, ...
We present predictions for the angular correlation function and redshift distribution for SHADES, the SCUBA HAlf-Degree Extragalactic Survey, which will yield a sample of around 300 sub-mm sources in...
WMAP constraints on inflationary models with global defects (2004)
Bevis, Neil, Hindmarsh, Mark, Kunz, Martin
We use the cosmic microwave background angular power spectra to place upper limits on the degree to which global defects may have aided cosmic structure formation. We explore this under the...