Quantum information scrambling in strongly disordered Rydberg spin systems

• URL: http://arxiv.org/abs/2512.19856v1
• Date: Mon, 22 Dec 2025 20:19:06 GMT
• Title: Quantum information scrambling in strongly disordered Rydberg spin systems
• Authors: Maximilian Müllenbach, Sebastian Geier, Adrian Braemer, Eduard Braun, Titus Franz, Gerhard Zürn, Matthias Weidemüller, Martin Gärttner,
• Abstract summary: We study information scrambling in strongly disordered spin systems with power-law interactions via out-of-time-order correlators (OTOCs)<n> Numerically, we find pronounced differences in the dynamical spreading of OTOCs between nearest-neighbor and power-law interacting systems.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Despite the fact that power-law interactions occur in a plethora of physical systems, their many-body dynamics is far less understood than that of nearest-neighbor interacting systems. Here, we study information scrambling in strongly disordered spin systems with power-law interactions via out-of-time-order correlators (OTOCs). Numerically, we find pronounced differences in the dynamical spreading of OTOCs between nearest-neighbor and power-law interacting systems. This deviation persists even for short-range interactions, opposing the common view that these interactions produce dynamics equivalent to the nearest-neighbor case. In a detailed experimental proposal, tailored but not limited to Rydberg tweezer setups, we present a protocol to extract OTOCs in XXZ Heisenberg spin systems with tunable anisotropy and programmable disorder based on currently available techniques.

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