Physics Colloquium: Kaden Hazzard, Programmable quantum matter with real and synthetic dimensions

Wed, Oct 12, 2022 - 04:00 PM — Wed, Oct 12, 2022 - 05:00 PM
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Mashak Science Building, Room 418N, and by Zoom. For details, please contact Sriram Ganeshan,
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Kaden Hazzard
Associate Professor
Physics and Astronomy
Rice University, Houston, TX

Programmable quantum matter with real and synthetic dimensions


Physicists’ ability to measure and control quantum matter has grown from manipulating the quantum motion of single atoms in the 1990s to coherently controlling thousands of them, frequently atom-by-atom. This has led to insights into interacting quantum matter, and new phases of matter and dynamical phenomena. I will discuss our recent progress advancing this frontier, in which we (theorists) have partnered with experimentalists to create and understand programmable matter in both real space and in so-called synthetic dimensions. One approach uses optical potentials in real space to program arbitrary lattice geometries for fermions, allowing experiments to perform “quantum simulations” of models and regimes that have never before been accessible. Another, perhaps more surprising, approach uses synthetic dimensions, systems with degrees of freedom that behave in a way that can mimic motion in space. I will focus on Rydberg atom synthetic dimensions, describing recent experiments that observed topological edge states and how interactions can lead to novel phenomena such as quantum strings and membranes, and to parastatistical quasiparticles, a type of particle beyond fermions and bosons (and beyond anyons). 

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