article published yes Maksym Serbyn author 47809E7E-F248-11E8-B48F-1D18A9856A870000-0002-2399-5827 Dmitry A. Abanin author Zlatko Papić author MaSe department Non-Ergodic Quantum Matter: Universality, Dynamics and Control project Thermalization is the inevitable fate of many complex quantum systems, whose dynamics allow them to fully explore the vast configuration space regardless of the initial state---the behaviour known as quantum ergodicity. In a quest for experimental realizations of coherent long-time dynamics, efforts have focused on ergodicity-breaking mechanisms, such as integrability and localization. The recent discovery of persistent revivals in quantum simulators based on Rydberg atoms have pointed to the existence of a new type of behaviour where the system rapidly relaxes for most initial conditions, while certain initial states give rise to non-ergodic dynamics. This collective effect has been named ”quantum many-body scarring’by analogy with a related form of weak ergodicity breaking that occurs for a single particle inside a stadium billiard potential. In this Review, we provide a pedagogical introduction to quantum many-body scars and highlight the emerging connections with the semiclassical quantization of many-body systems. We discuss the relation between scars and more general routes towards weak violations of ergodicity due to embedded algebras and non-thermal eigenstates, and highlight possible applications of scars in quantum technology. https://research-explorer.ista.ac.at/download/9428/10026/RevisedQMBSreview.pdf application/pdf2021-12-01no Nature Research2021 eng 1745-2481 2011.09486 00065556380000210.1038/s41567-021-01230-2 176675–685 M. Serbyn, D.A. Abanin, Z. Papić, Nature Physics 17 (2021) 675–685. Serbyn, Maksym, Dmitry A. Abanin, and Zlatko Papić. “Quantum Many-Body Scars and Weak Breaking of Ergodicity.” <i>Nature Physics</i>. Nature Research, 2021. <a href="https://doi.org/10.1038/s41567-021-01230-2">https://doi.org/10.1038/s41567-021-01230-2</a>. Serbyn M, Abanin DA, Papić Z. 2021. Quantum many-body scars and weak breaking of ergodicity. Nature Physics. 17(6), 675–685. Serbyn, M., Abanin, D. A., &#38; Papić, Z. (2021). Quantum many-body scars and weak breaking of ergodicity. <i>Nature Physics</i>. Nature Research. <a href="https://doi.org/10.1038/s41567-021-01230-2">https://doi.org/10.1038/s41567-021-01230-2</a> Serbyn M, Abanin DA, Papić Z. Quantum many-body scars and weak breaking of ergodicity. <i>Nature Physics</i>. 2021;17(6):675–685. doi:<a href="https://doi.org/10.1038/s41567-021-01230-2">10.1038/s41567-021-01230-2</a> M. Serbyn, D. A. Abanin, and Z. Papić, “Quantum many-body scars and weak breaking of ergodicity,” <i>Nature Physics</i>, vol. 17, no. 6. Nature Research, pp. 675–685, 2021. Serbyn, Maksym, et al. “Quantum Many-Body Scars and Weak Breaking of Ergodicity.” <i>Nature Physics</i>, vol. 17, no. 6, Nature Research, 2021, pp. 675–685, doi:<a href="https://doi.org/10.1038/s41567-021-01230-2">10.1038/s41567-021-01230-2</a>. 94282021-05-28T09:03:50Z2025-04-14T07:52:09Z