Related papers: Probing emergent prethermal dynamics and resonant melting on a programmable quantum simulator

Probing emergent prethermal dynamics and resonant melting on a programmable quantum simulator

URL: http://arxiv.org/abs/2510.11706v1
Date: Mon, 13 Oct 2025 17:58:04 GMT
Title: Probing emergent prethermal dynamics and resonant melting on a programmable quantum simulator
Authors: Siva Darbha, Alexey Khudorozhkov, Pedro L. S. Lopes, Fangli Liu, Ermal Rrapaj, Jan Balewski, Majd Hamdan, Pavel E. Dolgirev, Alexander Schuckert, Katherine Klymko, Sheng-Tao Wang, Mikhail D. Lukin, Daan Camps, Milan Kornjača,
Abstract summary: dynamics of isolated quantum systems following a sudden quench plays a central role in many areas of material science, high-energy physics, and quantum chemistry.<n>Here, we use a programmable neutral atom quantum simulator to explore quench dynamics in spin models with up to 180 qubits.<n>We trace their robustness to Floquet-like prethermal steady states that are stabilized over long emergent timescales.
Score: 28.28351393962583
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The dynamics of isolated quantum systems following a sudden quench plays a central role in many areas of material science, high-energy physics, and quantum chemistry. Featuring complex phenomena with implications for thermalization, non-equilibrium phase transitions, and Floquet phase engineering, such far-from-equilibrium quantum dynamics is challenging to study numerically, in particular, in high-dimensional systems. Here, we use a programmable neutral atom quantum simulator to systematically explore quench dynamics in spin models with up to 180 qubits. By initializing the system in a product state and performing quenches across a broad parameter space, we discover several stable, qualitatively distinct dynamical regimes. We trace their robustness to Floquet-like prethermal steady states that are stabilized over long emergent timescales by strong dynamical constraints. In addition, we observe sharp peaks in the dynamical response that are quantitatively explained by the structured melting of prethermalization through resonances. In two dimensions, we uncover a sharp dynamical response change that converges with increased system size, that is linked to the proliferation of N\'{e}el-order defects and indicative of a dynamical phase transition with no equilibrium analogs. Uncovering an intricate interplay between quantum prethermalization and emergent dynamical phases, our results demonstrate the use of quantum simulators for revealing complex non-equilibrium quantum many-body phenomena.

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