Quantum and nonlinear effects in light transmitted through planar atomic arrays (2020)
Journal Article
Bettles, R. J., Lee, M. D., Gardiner, S. A., & Ruostekoski, J. (2020). Quantum and nonlinear effects in light transmitted through planar atomic arrays. Communications Physics, 3(1), Article 141. https://doi.org/10.1038/s42005-020-00404-3

Understanding strong cooperative optical responses in dense and cold atomic ensembles is vital for fundamental science and emerging quantum technologies. Methodologies for characterizing light-induced quantum effects in such systems, however, are sti... Read More about Quantum and nonlinear effects in light transmitted through planar atomic arrays.

Splitting of two-component solitary waves from collisions with narrow potential barriers (2020)
Journal Article
Grimshaw, C. L., Gardiner, S. A., & Malomed, B. A. (2020). Splitting of two-component solitary waves from collisions with narrow potential barriers. Physical Review A, 101(4), Article 043623. https://doi.org/10.1103/physreva.101.043623

We consider the interaction of two-component bright-bright solitons with a narrow potential barrier (splitter) in the framework of a system of two Gross-Pitaevskii (nonlinear-Schrödinger) equations modeling a binary Bose-Einstein condensate, with sel... Read More about Splitting of two-component solitary waves from collisions with narrow potential barriers.

Splitting and recombination of bright-solitary-matter waves (2020)
Journal Article
Wales, O. J., Rakonjac, A., Billam, T. P., Helm, J. L., Gardiner, S. A., & Cornish, S. L. (2020). Splitting and recombination of bright-solitary-matter waves. Communications Physics, 3, Article 51. https://doi.org/10.1038/s42005-020-0320-8

Atomic Bose–Einstein condensates confined in quasi-1D waveguides can support bright-solitary-matter waves when interatomic interactions are sufficiently attractive to cancel dispersion. Such solitary-matter waves are excellent candidates for highly s... Read More about Splitting and recombination of bright-solitary-matter waves.

Spin–orbit coupling in the presence of strong atomic correlations (2020)
Journal Article
Usui, A., Fogarty, T., Campbell, S., Gardiner, S. A., & Busch, T. (2020). Spin–orbit coupling in the presence of strong atomic correlations. New Journal of Physics, 22(1), Article 013050. https://doi.org/10.1088/1367-2630/ab6576

We explore the influence of contact interactions on a synthetically spin–orbit coupled system of two ultracold trapped atoms. Even though the system we consider is bosonic, we show that a regime exists in which the competition between the contact and... Read More about Spin–orbit coupling in the presence of strong atomic correlations.