Outputs (8)

epsilon-pseudoclassical model for quantum resonances in a cold dilute atomic gas periodically driven by finite-duration standing-wave laser pulses (2016)
Journal Article
Beswick, B., Hughes, I., Gardiner, S., Astier, H., Andersen, M., & Daszuta, B. (2016). epsilon-pseudoclassical model for quantum resonances in a cold dilute atomic gas periodically driven by finite-duration standing-wave laser pulses. Physical Review A, 94(6), Article 063604. https://doi.org/10.1103/physreva.94.063604

Atom interferometers are a useful tool for precision measurements of fundamental physical phenomena, ranging from the local gravitational-field strength to the atomic fine-structure constant. In such experiments, it is desirable to implement a high-m... Read More about epsilon-pseudoclassical model for quantum resonances in a cold dilute atomic gas periodically driven by finite-duration standing-wave laser pulses.

Cooperative eigenmodes and scattering in one-dimensional atomic arrays (2016)
Journal Article
Bettles, R. J., Gardiner, S. A., & Adams, C. S. (2016). Cooperative eigenmodes and scattering in one-dimensional atomic arrays. Physical Review A, 94(4), Article 043844. https://doi.org/10.1103/physreva.94.043844

Collective coupling between dipoles can dramatically modify the optical response of a medium. Such effects depend strongly on the geometry of the medium and the polarization of the light. Using a classical coupled dipole model, here we investigate th... Read More about Cooperative eigenmodes and scattering in one-dimensional atomic arrays.

Excitation of knotted vortex lines in matter waves (2016)
Journal Article
Maucher, F., Gardiner, S., & Hughes, I. (2016). Excitation of knotted vortex lines in matter waves. New Journal of Physics, 18(6), Article 063016. https://doi.org/10.1088/1367-2630/18/6/063016

We study the creation of knotted ultracold matter waves in Bose–Einstein condensates via coherent two-photon Raman transitions with a Λ level configuration. The Raman transition allows an indirect transfer of atoms from the internal state $| a\rangle... Read More about Excitation of knotted vortex lines in matter waves.

Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array (2016)
Journal Article
Bettles, R. J., Gardiner, S. A., & Adams, C. S. (2016). Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array. Physical Review Letters, 116(10), Article 103602. https://doi.org/10.1103/physrevlett.116.103602

Enhancing the optical cross section is an enticing goal in light-matter interactions, due to its fundamental role in quantum and nonlinear optics. Here, we show how dipolar interactions can suppress off-axis scattering in a two-dimensional atomic arr... Read More about Enhanced optical cross section via collective coupling of atomic dipoles in a 2D array.

Stochastic growth dynamics and composite defects in quenched immiscible binary condensates (2016)
Journal Article
Liu, I.-K., Pattinson, R., Billam, T., Gardiner, S., Cornish, S., Huang, T.-M., Lin, W.-W., Gou, S.-C., Parker, N., & Proukakis, N. (2016). Stochastic growth dynamics and composite defects in quenched immiscible binary condensates. Physical Review A, 93(2), Article 023628. https://doi.org/10.1103/physreva.93.023628

We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmonically trapped immiscible two-component atomic Bose gases. The spontane... Read More about Stochastic growth dynamics and composite defects in quenched immiscible binary condensates.

Quantum reflection of bright solitary matter waves from a narrow attractive potential (2016)
Journal Article
Marchant, A., Billam, T., Yu, M., Rakonjac, A., Helm, J., Polo, J., Weiss, C., Gardiner, S., & Cornish, S. (2016). Quantum reflection of bright solitary matter waves from a narrow attractive potential. Physical Review A, 93(2), Article 021604(R). https://doi.org/10.1103/physreva.93.021604

We report the observation of quantum reflection from a narrow attractive potential using bright solitary matter waves formed from a Rb 85 Bose-Einstein condensate. We create the attractive potential using a tightly focused, red-detuned laser beam, an... Read More about Quantum reflection of bright solitary matter waves from a narrow attractive potential.

Measuring the disorder of vortex lattices in a Bose-Einstein condensate (2016)
Journal Article
Rakonjac, A., Marchant, A., Billam, T., Helm, J., Yu, M., Gardiner, S., & Cornish, S. (2016). Measuring the disorder of vortex lattices in a Bose-Einstein condensate. Physical Review A, 93(1), Article 013607. https://doi.org/10.1103/physreva.93.013607

We report observations of the formation and subsequent decay of a vortex lattice in a Bose-Einstein condensate confined in a hybrid optical-magnetic trap. Vortices are induced by rotating the anharmonic magnetic potential that provides confinement in... Read More about Measuring the disorder of vortex lattices in a Bose-Einstein condensate.

Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space (2016)
Journal Article
Weiss, C., Cornish, S., Gardiner, S., & Breuer, H.-P. (2016). Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space. Physical Review A, 93(1), Article 103605. https://doi.org/10.1103/physreva.93.013605

We show that the spreading of the center-of-mass density of ultracold attractively interacting bosons can become superballistic in the presence of decoherence, via one-, two-, and/or three-body losses. In the limit of weak decoherence, we analyticall... Read More about Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space.