23–27 Sept 2024
Faculty of Physics
Europe/Berlin timezone

Ultracold bosons in 2D quasicrystalline and Aubry-Andre systems

Not scheduled
2h
HS 2 (Max Born Hörsaal) (Faculty of Physics)

HS 2 (Max Born Hörsaal)

Faculty of Physics

Friedrich-Hund-Platz 1, 37077 Göttingen

Description

Ultracold atoms in optical lattices provide an ideal medium for studies of interacting lattice physics, thanks to their flexible, clean and widely tuneable nature. As such, applying this medium to the investigation of quasiperiodic systems, and the rich physics associated with them, presents a promising avenue to probing a range of physical phenomena, not least those related to localization. This poster presents an overview on our recent experiments studying such systems, in which we load ultracold bosons to both an eight-fold rotationally symmetric 2D optical quasicrystal, and a 2D Aubry-Andre lattice, observing signatures of superfluid, Bose glass, and Mott insulator phases and mapping out phase diagrams of both systems with variable interaction strength. We furthermore study the dynamics in the quasicrystal, looking into both sudden quenches between the superfluid and Bose glass regimes and discuss how the results relate to the underlying system and localization phenomena.
*European Union (ERC), EPSRC, EPSRC hub on Quantum Computing and Simulation

Primary authors

Dr Bo Song (Peking University) Mr David Gröters (University of Cambridge --> MPQ) Emmanuel Gottlob (University of Cambridge) Mr Lee Reeve (University of Cambridge) Qijun Wu (University of Cambridge) Prof. Ulrich Schneider (University of Cambridge) Zhuoxian Ou (University of Cambridge)

Presentation materials

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