Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session R08: Dynamics of Cold Atoms
2:00 PM–4:00 PM,
Thursday, June 6, 2024
Room: 203B
Chair: Jae-yoon Choi, KAIST
Abstract: R08.00003 : Quantum simulation of fracton dynamics
2:24 PM–2:36 PM
Presenter:
Perrin C Segura
(Harvard University)
Authors:
Perrin C Segura
(Harvard University)
Sooshin Kim
(Harvard University)
Byungmin Kang
(Massachusetts Institute of Technology)
Yanfei Li
(Harvard University)
Joyce Kwan
(Harvard University)
Ethan A Lake
(University of California, Berkeley)
Brice Bakkali-Hassani
(Harvard University)
Markus Greiner
(Harvard University)
In this work, we explore the dynamics of such a system using a rubidium-87 quantum gas microscope. Using a digital micromirror device, we initialize a set number of particle-hole pairs on top of a tilted chain with unity filling, and allow these fractons to expand in the lattice. For a single fracton, the resulting density profile shows dynamics similar to a single-particle quantum walk despite its many-body nature. We also prepare two fractons a few sites away from each other and demonstrate effective hard-core interactions between them. This experiment serves as a proof of concept for preparing such fracton excitations as probes of the underlying many-body state.
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