Exploring many-body fragmented Hilbert spaces with Rydberg atoms arrays: from kinetic constraints to glassy dynamics

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• Jamir Marino (JGU Mainz)
• Thursday 22 June 2023, 13:15-14:30
• Theory Library.

If you have a question about this talk, please contact Dr Hannah Price.

The dynamics of information and entanglement in quantum systems defines a field that ties together several seemingly unrelated fundamental aspects in theoretical physics, ranging from AMO to condensed matter, encompassing quantum statistical mechanics. One of the key challenges in the field is the storage of quantum information, as most interacting quantum systems tend to thermalize. Once equilibrium is reached, initial state information is hard to retrieve, since excitations are scattered ergodically into several degrees of freedom following conventional statistical mechanics. In order to overcome this obstacle, a variety of proposals have attempted to confine quantum information into conserved or quasi-conserved quantities, obstructing ergodicity and consequent thermalization. In this talk, I will present preliminary results on a joint collaboration with the Rydberg atoms lab in Chicago to design a tweezer array where one can tunably control the accessible many body Hilbert space during dynamics.The resulting effective spin model can transit across the entire set of iconic instances of non-ergodicities, ranging from glassy dynamics to fragmentation and scarring, by simply varying a configuration of staggered driving fields, therefore realizing a universal platform to store quantum information in interacting systems. The talk will also offer a broad introduction to the subject of thermalization in isolated quantum systems. Specifically, we will focus on a simple model which is a precursor of the Rydberg tweezer-array, and which exhibits disorder-free localization as a result of kinetic constraints implementable in state-of-the-art superconducting circuits.

This talk is part of the Theoretical Physics Seminars series.

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• Bham Talks
• Theoretical Physics Seminars
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