30 August 2021 to 3 September 2021
University of Innsbruck
Europe/Zurich timezone

【469】Mott transition in a cavity-boson system: A quantitative comparison between theory and experiment

31 Aug 2021, 19:00
1h 30m
Hall

Hall

Poster Atomic Physics and Quantum Optics Poster Session

Speaker

Rui Lin (ETH Zurich)

Description

The competition between short-range and cavity-mediated infinite-range interactions in a cavity-boson system leads to the existence of a superfluid and a Mott-insulator phase within the self-organized regime. We quantitatively compare the steady-state phase boundaries of this transition measured in experiments and simulated using the Multiconfigurational Time-Dependent Hartree Method for Indistinguishable Particles. We reduce the computational cost by reducing the full system to a 2D four-well potential. We argue that the validity of this representation comes from the nature of both the cavity-atomic system and the Bose-Hubbard physics. The experimentally measured and theoretically predicted phase boundaries agree reasonably. We propose a new approach for the quantitative determination of the superfluid--Mott-insulator boundary.

Primary authors

Rui Lin (ETH Zurich) Mr Christoph Georges (Universit\"at Hamburg) Dr Jens Klinder (Universität Hamburg) Paolo Molignini (University of Cambridge) Ms Miriam Büttner (Universität Freiburg) Dr Axel Lode (Universität Freiburg) Chitra Ramasubramanian (ETH Zürich) Prof. Andreas Hemmerich (Universität Hamburg) Dr Hans Keßler (Universität Hamberg)

Presentation materials

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