database Aron Kerschbaumer author ade85a9c-3200-11ee-973b-91c1eb2404100009-0002-2370-8661 GradSch department MaSe department IST-BRIDGE: International postdoctoral program project Solitons - localized wave packets that travel without spreading - play a central role in understanding transport and properties of nonlinear systems. In quantum many-body systems, however, such robust excitations are typically destroyed by thermalization. Here, we theoretically demonstrate the existence of solitonic excitations in high-energy states of Rydberg atom chains in the regime of strong nearest-neighbor Rydberg blockade. These localized wave packets propagate directionally atop a special class of reviving initial states related to quantum many-body scars and are capable of carrying energy. Exhibiting long coherence times, these states constitute a form of non-ergodic quantum dynamics and can be efficiently implemented on Rydberg atom simulators. In this work, in addition to a phenomenological description of solitons, we identify their counterpart in a classical nonlinear dynamical system, demonstrate their potential use in quantum information transfer, and conjecture their relevance for anomalous energy transport reported in numerical studies of Rydberg atom arrays. https://research-explorer.ista.ac.at/download/21960/22010/README.txt text/plainno https://research-explorer.ista.ac.at/download/21960/22011/Soliton_Data.zip application/zipno Institute of Science and Technology Austria2026 10.15479/AT-ISTA-21960 Kerschbaumer, A. (2026). Research Data: “Quasi-solitons in Rydberg atom chains.” Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT-ISTA-21960">https://doi.org/10.15479/AT-ISTA-21960</a> Kerschbaumer, Aron. “Research Data: ‘Quasi-Solitons in Rydberg Atom Chains.’” Institute of Science and Technology Austria, 2026. <a href="https://doi.org/10.15479/AT-ISTA-21960">https://doi.org/10.15479/AT-ISTA-21960</a>. A. Kerschbaumer, (2026). Kerschbaumer A. 2026. Research Data: ‘Quasi-solitons in Rydberg atom chains’, Institute of Science and Technology Austria, <a href="https://doi.org/10.15479/AT-ISTA-21960">10.15479/AT-ISTA-21960</a>. Kerschbaumer A. Research Data: “Quasi-solitons in Rydberg atom chains.” 2026. doi:<a href="https://doi.org/10.15479/AT-ISTA-21960">10.15479/AT-ISTA-21960</a> Kerschbaumer, Aron. <i>Research Data: “Quasi-Solitons in Rydberg Atom Chains.”</i> Institute of Science and Technology Austria, 2026, doi:<a href="https://doi.org/10.15479/AT-ISTA-21960">10.15479/AT-ISTA-21960</a>. A. Kerschbaumer, “Research Data: ‘Quasi-solitons in Rydberg atom chains.’” Institute of Science and Technology Austria, 2026. 219602026-06-09T07:17:50Z2026-06-16T08:00:38Z