Early Warning Signals of the Tipping Point in Strongly Interacting Rydberg Atoms.

Zhang, Jun; Zhang, Li-Hua; Liu, Bang; Zhang, Zheng-Yuan; Shao, Shi-Yao; Li, Qing; Chen, Han-Chao; Liu, Zong-Kai; Ma, Yu; Han, Tian-Yu; Wang, Qi-Feng; Adams, C Stuart; Shi, Bao-Sen; Ding, Dong-Sheng

Abstract

The identification of tipping points is essential for the prediction of collapses or other sudden changes in complex systems. Applications include studies of ecology, thermodynamics, climatology, and epidemiology. However, detecting early signs of proximity to a tipping is made challenging by complexity and nonlinearity. Strongly interacting Rydberg atom gases offer model systems that offer both complexity and nonlinearity, including phase transition and critical slowing down. Here, via an external probe we observe prior warning of the proximity of a phase transition of Rydberg thermal gases. This warning signal is manifested as a deviation from linear growth of the variance with increasing probe intensity. We also observed the dynamics of the critical slowing down behavior versus different timescales and atomic densities, thus providing insights into the study of a Rydberg atom system's critical behavior. Our experiment suggests that the full critical slowing down dynamics of strongly interacting Rydberg atoms can be probed systematically, thus providing a benchmark with which to identify critical phenomena in quantum many-body systems.

Citation

Zhang, J., Zhang, L.-H., Liu, B., Zhang, Z.-Y., Shao, S.-Y., Li, Q., Chen, H.-C., Liu, Z.-K., Ma, Y., Han, T.-Y., Wang, Q.-F., Adams, C. S., Shi, B.-S., & Ding, D.-S. (2024). Early Warning Signals of the Tipping Point in Strongly Interacting Rydberg Atoms. Physical Review Letters, 133(24), Article 243601. https://doi.org/10.1103/PhysRevLett.133.243601

• Journal Article Type: Article
• Acceptance Date: Nov 12, 2024
• Online Publication Date: Dec 9, 2024
• Publication Date: Dec 13, 2024
• Deposit Date: Jan 20, 2025
• Publicly Available Date: Jan 21, 2025
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 133
• Issue: 24
• Article Number: 243601
• DOI: https://doi.org/10.1103/PhysRevLett.133.243601
• Public URL: https://durham-repository.worktribe.com/output/3341864