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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.

Collision dynamics and entanglement generation of two initially independent and indistinguishable boson pairs in one-dimensional harmonic confinement (2013)
Journal Article
Holdaway, D., Weiss, C., & Gardiner, S. (2013). Collision dynamics and entanglement generation of two initially independent and indistinguishable boson pairs in one-dimensional harmonic confinement. Physical Review A, 87(4), Article 043632. https://doi.org/10.1103/physreva.87.043632

We investigate finite-number effects in collisions between two states of an initially well-known number of identical bosons with contact interactions, oscillating in the presence of harmonic confinement in one dimension. We investigate two N/2 (inter... Read More about Collision dynamics and entanglement generation of two initially independent and indistinguishable boson pairs in one-dimensional harmonic confinement.

Second-order number-conserving description of nonequilibrium dynamics in finite-temperature Bose-Einstein condensates (2013)
Journal Article
Billam, T., Mason, P., & Gardiner, S. (2013). Second-order number-conserving description of nonequilibrium dynamics in finite-temperature Bose-Einstein condensates. Physical Review A, 87(3), Article 033628. https://doi.org/10.1103/physreva.87.033628

While the Gross-Pitaevskii equation is well established as the canonical dynamical description of atomic Bose-Einstein condensates (BECs) at zero temperature, describing the dynamics of BECs at finite temperatures remains a difficult theoretical prob... Read More about Second-order number-conserving description of nonequilibrium dynamics in finite-temperature Bose-Einstein condensates.

Tunnelling of the 3rd kind: A test of the effective non-locality of quantum field theory (2013)
Journal Article
Gardiner, S., Gies, H., Jaeckel, J., & Wallace, C. (2013). Tunnelling of the 3rd kind: A test of the effective non-locality of quantum field theory. European Physical Society Letters, 101(6), Article 61001. https://doi.org/10.1209/0295-5075/101/61001

Integrating out virtual quantum fluctuations in an originally local quantum field theory results in an effective theory which is non-local. In this letter we argue that tunnelling of the 3rd kind —where particles traverse a barrier by splitting into... Read More about Tunnelling of the 3rd kind: A test of the effective non-locality of quantum field theory.

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.