Speaker: Alexander Pritchard
Affiliation: University of Queensland


Multi-component Bose-Einstein condensates are an ideal system for studying interacting superfluid behaviours and phenomena, including magnetic ordering, domain formation, and coarsening dynamics in quantum superfluids of various miscibility. Here we have developed a protocol which allows the bespoke ordering and manipulation of magnetic domains in a multi spin-component condensate, using spin-dependent optical tweezers. The optical potential uses the tune-out wavelength, which for rubidium occurs at 790.018nm, which has a m­F state dependence due to the vector light shift. With this, we have studied the dynamics of the domain under displacement using optical tweezers, as well with an applied magnetic gradient. We observe the emergence of soliton like structures in the BEC, along with signatures of vortex dipoles generation.

About Physics Seminars

The weekly Physics Seminar series focuses on a broad range of physics research within SMP, along with frequent presentations from visiting researchers. Seminars are usually scheduled for 1.00pm on Tuesdays.

The talks are typically more specialised than a colloquium but are often attended by staff and PhD students across a broad range of areas. Speakers are thus encouraged to include introductory material in the talks.

All SMP researchers and HDR students are encouraged to speak. Please email Lewis Williamson to register your interest.

The seminars are open so there is no need to register your attendance.


Physics Annexe (06)
407 (or via Zoom https://uqz.zoom.us/j/94116861984)