Outputs (10)

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-Coupled Interferometry with Ring-Trapped Bose-Einstein Condensates (2018)
Journal Article
Helm, J., Billam, T., Rakonjac, A., Cornish, S., & Gardiner, S. (2018). Spin-Orbit-Coupled Interferometry with Ring-Trapped Bose-Einstein Condensates. Physical Review Letters, 120(6), Article 063201. https://doi.org/10.1103/physrevlett.120.063201

We propose a method of atom interferometry using a spinor Bose-Einstein condensate with a timevarying magnetic field acting as a coherent beam splitter. Our protocol creates long-lived superpositional counterflow states, which are of fundamental inte... Read More about Spin-Orbit-Coupled Interferometry with Ring-Trapped Bose-Einstein Condensates.

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.

Sagnac interferometry using bright matter-wave solitons (2015)
Journal Article
Helm, J., Cornish, S., & Gardiner, S. (2015). Sagnac interferometry using bright matter-wave solitons. Physical Review Letters, 114(13), Article 134101. https://doi.org/10.1103/physrevlett.114.134101

We use an effective one-dimensional Gross-Pitaevskii equation to study bright matter-wave solitons held in a tightly confining toroidal trapping potential, in a rotating frame of reference, as they are split and recombined on narrow barrier potential... Read More about Sagnac interferometry using bright matter-wave solitons.

Controlled formation and reflection of a bright solitary matter-wave (2013)
Journal Article
Marchant, A., Billam, T., Wiles, T., Yu, M., Gardiner, S., & Cornish, S. (2013). Controlled formation and reflection of a bright solitary matter-wave. Nature Communications, 4, Article 1865. https://doi.org/10.1038/ncomms2893

Bright solitons are non-dispersive wave solutions, arising in a diverse range of nonlinear, one-dimensional systems, including atomic Bose–Einstein condensates with attractive interactions. In reality, cold-atom experiments can only approach the idea... Read More about Controlled formation and reflection of a bright solitary matter-wave.

Equilibrium solutions for immiscible two-species Bose-Einstein condensates in perturbed harmonic traps (2013)
Journal Article
Pattinson, R., Billam, T., Gardiner, S., McCarron, D., Cho, H., Cornish, S., …Proukakis, N. (2013). Equilibrium solutions for immiscible two-species Bose-Einstein condensates in perturbed harmonic traps. Physical Review A, 87(1), Article 013625. https://doi.org/10.1103/physreva.87.013625

We investigate the mean-field equilibrium solutions for a two-species immiscible Bose-Einstein condensate confined by a harmonic confinement with additional linear perturbations. We observe a range of equilibrium density structures, including ball an... Read More about Equilibrium solutions for immiscible two-species Bose-Einstein condensates in perturbed harmonic traps.

Realizing bright-matter-wave-soliton collisions with controlled relative phase (2011)
Journal Article
Billam, T., Cornish, S., & Gardiner, S. (2011). Realizing bright-matter-wave-soliton collisions with controlled relative phase. Physical Review A, 83(4), Article 041602. https://doi.org/10.1103/physreva.83.041602

We propose a method to split the ground state of an attractively interacting atomic Bose-Einstein condensate into two bright solitary waves with controlled relative phase and velocity. We analyze the stability of these waves against their subsequent... Read More about Realizing bright-matter-wave-soliton collisions with controlled relative phase.