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Scaling solutions and geodesics in moduli space (2006)
Journal Article
Karthauser, J., & Saffin, P. M. (2006). Scaling solutions and geodesics in moduli space. Classical and Quantum Gravity, 23(14), https://doi.org/10.1088/0264-9381/23/14/004

In this paper we consider cosmological scaling solutions in general relativity coupled to scalar fields with a non-trivial moduli space metric. We discover that the scaling property of the cosmology is synonymous with the scalar fields tracing out a... Read More about Scaling solutions and geodesics in moduli space.

M-theory on seven-dimensional manifolds with SU(3) structure (2006)
Journal Article
Micu, A., Palto, E., & Saffin, P. (2006). M-theory on seven-dimensional manifolds with SU(3) structure. Journal of High Energy Physics, 2006(5), https://doi.org/10.1088/1126-6708/2006/05/048

In this paper we study M-theory compactifications on seven-dimensional manifolds with SU(3) structure. As such manifolds naturally pick out a specific direction, the resulting effective theory can be cast into a form which is similar to type IIA comp... Read More about M-theory on seven-dimensional manifolds with SU(3) structure.

The Dynamics of coset dimensional reduction (2006)
Journal Article
Karthauser, J. L., & Saffin, P. M. (2006). The Dynamics of coset dimensional reduction. Physical Review D, 73(8), https://doi.org/10.1103/PhysRevD.73.084027

The evolution of multiple scalar fields in cosmology has been much studied, particularly when the potential is formed from a series of exponentials. For a certain subclass of such systems it is possible to get `assisted` behaviour, where the presence... Read More about The Dynamics of coset dimensional reduction.

Spatial fluctuations in the spectral shape of the UV background at 2 (2006)
Journal Article
S. Bolton, J., G. Haehnelt, M., Viel, M., & F. Carswell, R. (2006). Spatial fluctuations in the spectral shape of the UV background at 2. Monthly Notices of the Royal Astronomical Society, 366(4), 1378-1390. https://doi.org/10.1111/j.1365-2966.2006.09927.x

The low density hydrogen and helium in the IGM probed by QSO absorption lines is sensitive to the amplitude and spectral shape of the metagalactic UV background. We use realistic HI and HeII Ly-alpha forest spectra, constructed from state-of-the-art... Read More about Spatial fluctuations in the spectral shape of the UV background at 2.

Nanotechnology: radical new science or plus ça change? (2005)
Journal Article
Moriarty, P. (2005). Nanotechnology: radical new science or plus ça change?. Nanotechnology Perceptions, 1,

Is a radical nanotechnology involving the construction of macroscopic products via software-directed manipulation of single molecules possible? Are we only a few decades away from a technological utopia where virtually any product may be constructed... Read More about Nanotechnology: radical new science or plus ça change?.

The Lyman-alpha forest opacity and the metagalactic hydrogen ionization rate at z~2-4 (2005)
Journal Article
S. Bolton, J., G. Haehnelt, M., Viel, M., & Springel, V. (2005). The Lyman-alpha forest opacity and the metagalactic hydrogen ionization rate at z~2-4. Monthly Notices of the Royal Astronomical Society, 357(4), 1178–1188. https://doi.org/10.1111/j.1365-2966.2005.08704.x

Estimates of the metagalactic hydrogen ionization rate from the Lyman-alpha forest opacity in QSO absorption spectra depend on the complex density distribution of neutral hydrogen along the line-of-sight. We use a large suite of high resolution hydro... Read More about The Lyman-alpha forest opacity and the metagalactic hydrogen ionization rate at z~2-4.

Radiative transfer through the intergalactic medium (2004)
Journal Article
Bolton, J., Meiksin, A., & White, M. (2004). Radiative transfer through the intergalactic medium. Monthly Notices of the Royal Astronomical Society, 348(3), L43-L48. https://doi.org/10.1111/j.1365-2966.2004.07567.x

We use a probabilistic method to compute the propagation of an ionization front corresponding to the reionization of the intergalactic medium in a Λ-cold dark matter (ΛCDM) cosmology, including both hydrogen and helium. The effects of radiative trans... Read More about Radiative transfer through the intergalactic medium.

Electric field strengths and ion trajectories in sharp-edge field ionization sources (1970)
Journal Article
Brailsford, D. F. (1970). Electric field strengths and ion trajectories in sharp-edge field ionization sources. Journal of Physics D: Applied Physics, 3,

On the presumption that a sharp edge may be represented by a hyperbola, a conformal transformation method is used to derive electric field equations for a sharp edge suspended above a flat plate. A further transformation is then introduced to give el... Read More about Electric field strengths and ion trajectories in sharp-edge field ionization sources.