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Bright solitary-matter-wave collisions in a harmonic trap: Regimes of solitonlike behavior (2008)
Journal Article
Martin, A., Adams, C., & Gardiner, S. (2008). Bright solitary-matter-wave collisions in a harmonic trap: Regimes of solitonlike behavior. Physical Review A, 77(1), https://doi.org/10.1103/physreva.77.013620

Systems of solitary waves in the one-dimensional Gross-Pitaevskii equation, which models a trapped atomic Bose-Einstein condensate, are investigated theoretically. To analyze the soliton nature of these solitary waves, a particle analogy for the soli... Read More about Bright solitary-matter-wave collisions in a harmonic trap: Regimes of solitonlike behavior.

Electromagnetically induced transparency of an interacting cold Rydberg ensemble (2008)
Journal Article
Weatherill, K., Pritchard, J., Abel, R., Bason, M., Mohapatra, A., & Adams, C. (2008). Electromagnetically induced transparency of an interacting cold Rydberg ensemble. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(20), Article 201002. https://doi.org/10.1088/0953-4075/41/20/201002

We study electromagnetically induced transparency (EIT) of a weakly interacting cold Rydberg gas. We show that for Rydberg states with principal quantum numbers in the range n = 19–26, the onset of interactions is manifest as a depopulation of the Ry... Read More about Electromagnetically induced transparency of an interacting cold Rydberg ensemble.

Magnetic trapping of a cold Rb-Cs atomic mixture (2008)
Journal Article
Harris, M., Tierney, P., & Cornish, S. (2008). Magnetic trapping of a cold Rb-Cs atomic mixture. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(5), Article 059803. https://doi.org/10.1088/0953-4075/41/5/059803

We present an apparatus for the study of an ultracold gaseous atomic mixture of 133Cs and 87Rb. The mixture is prepared using a double magneto-optical trap (MOT) system in which a two-species pyramid MOT acts as a source of cold atoms for a `science'... Read More about Magnetic trapping of a cold Rb-Cs atomic mixture.

Reliable identification of Compton-thick quasars at z~2 : Spitzer mid-infrared spectroscopy of HDF-oMD49 (2008)
Journal Article
Alexander, D., Chary, R., Pope, A., Bauer, F., Brandt, W., Daddi, E., …Reddy, N. (2008). Reliable identification of Compton-thick quasars at z~2 : Spitzer mid-infrared spectroscopy of HDF-oMD49. Astrophysical Journal, 687(2), 835-847. https://doi.org/10.1086/591928

Many models that seek to explain the origin of the unresolved X-ray background predict that Compton-thick active galactic nuclei (AGNs) are ubiquitous at high redshift. However, few distant Compton-thick AGNs have been reliably identified to date. He... Read More about Reliable identification of Compton-thick quasars at z~2 : Spitzer mid-infrared spectroscopy of HDF-oMD49.

The Nature of CO Emission from z~6 Quasars (2008)
Journal Article
Narayanan, D., Li, Y., Cox, T., Hernquist, L., Hopkins, P., Chakrabarti, S., …Walker, C. (2008). The Nature of CO Emission from z~6 Quasars. Astrophysical Journal Supplement, 174(1), 13-30. https://doi.org/10.1086/521776

We investigate the nature of molecular gas emission from z ~ 6 quasars via the commonly observed tracer of H2, carbon monoxide (CO). We achieve this by combining non-LTE radiative transfer calculations with merger-driven models of z ~ 6 quasar format... Read More about The Nature of CO Emission from z~6 Quasars.

Generating dark matter halo merger trees (2008)
Journal Article
Parkinson, H., Cole, S., & Helly, J. (2008). Generating dark matter halo merger trees. Monthly Notices of the Royal Astronomical Society, 383(2), 557-564. https://doi.org/10.1111/j.1365-2966.2007.12517.x

We present a new Monte Carlo algorithm to generate merger trees describing the formation history of dark matter haloes. The algorithm is a modification of the algorithm of Cole et al. used in the galform semi-analytic galaxy formation model. As such,... Read More about Generating dark matter halo merger trees.

The detectability of baryonic acoustic oscillations in future galaxy surveys (2008)
Journal Article
Angulo, R., Baugh, C., Frenk, C., & Lacey, C. (2008). The detectability of baryonic acoustic oscillations in future galaxy surveys. Monthly Notices of the Royal Astronomical Society, 383(2), 755-776. https://doi.org/10.1111/j.1365-2966.2007.12587.x

We assess the detectability of baryonic acoustic oscillation (BAO) in the power spectrum of galaxies using ultralarge volume N-body simulations of the hierarchical clustering of dark matter and semi-analytical modelling of galaxy formation. A step-by... Read More about The detectability of baryonic acoustic oscillations in future galaxy surveys.

Collisions of bright solitary matter waves (2008)
Journal Article
Parker, N., Martin, A., Cornish, S., & Adams, C. (2008). Collisions of bright solitary matter waves. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(4), Article 045303. https://doi.org/10.1088/0953-4075/41/4/045303

The collisions of three-dimensional bright solitary matter waves formed from atomic Bose–Einstein condensates are shown to exhibit rich behaviour. Collisions range from being elastic to completely destructive due to the onset of collapse during the i... Read More about Collisions of bright solitary matter waves.

Absolute absorption on rubidium D lines: comparison between theory and experiment (2008)
Journal Article
Siddons, P., Adams, C., Ge, C., & Hughes, I. (2008). Absolute absorption on rubidium D lines: comparison between theory and experiment. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(15), Article 155004. https://doi.org/10.1088/0953-4075/41/15/155004

We study the Doppler-broadened absorption of a weak monochromatic probe beam in a thermal rubidium vapour cell on D lines. A detailed model of the susceptibility is developed which takes into account the absolute linestrengths of the allowed electric... Read More about Absolute absorption on rubidium D lines: comparison between theory and experiment.