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UID:5353-1750860000-1750863600@www.trr360.de
SUMMARY:TRR 360 Seminar: Signatures of fractional quantum Hall states in few-body systems Cecile Repellin
DESCRIPTION:Signatures of fractional quantum Hall states in few-body systems \nDr. Cecile Repellin \nUniversité Grenoble Alpes\, CNRS\, LPMMC\, Grenoble\, France \n  \nRealizing strongly correlated topological phases of ultracold gases is a central goal for quantum gas experiments. Due to the difficulty in preparing these phases\, ongoing experiments are focusing on ensembles of few atoms\, and the preparation of a fractional quantum Hall state of two bosonic atoms has been achieved [1]. Beyond their preparation\, the characterization of these few-body states poses a unique challenge due to their small system size. I will discuss which signatures can be used\, and show that hallmark fingerprints of fractional quantum Hall phases\, such as a quantized Hall conductivity [2]\, or chiral edge modes[3]\, can be extracted in few-particle systems through local density measurements. \n  \n[1] Léonard\, J.\, Kim\, S.\, Kwan\, J. et al.\, Realization of a fractional quantum Hall state with ultracold atoms. Nature 619\, 495–499 (2023).[2] Repellin\, C.\, Léonard\, J. and Goldman\, N.\, Chern insulators of few bosons in a box: Hall plateaus from center-of-mass drifts and density profiles. Phys. Rev. A 102\, 063316 (2020).[3] Binanti\, F.\, Goldman\, N.\, Repellin\, C\, Spectroscopy of edge and bulk collective modes in fractional Chern insulators. Phys. Rev. Research 6\, L012054 (2024). \n\n\n\n\n\n\nVenue
URL:https://www.trr360.de/event/trr-360-seminar-signatures-of-fractional-quantum-hall-states-in-few-body-systems-cecile-repellin/
LOCATION:Technical University Munich + Zoom
CATEGORIES:Seminar
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