Quantum tomography of a third-order exceptional point in a dissipative trapped ion

Abstract Hermiticity in quantum mechanics ensures the reality of energies, while parity-time symmetry offers an alternative route. Interestingly, in a three-level system, parity-time symmetry-breaking can lead to third-order exceptional points with distinctive topological properties. Experimentally...

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Bibliographic Details
Main Authors: Y.-Y. Chen, K. Li, L. Zhang, Y.-K. Wu, J.-Y. Ma, H.-X. Yang, C. Zhang, B.-X. Qi, Z.-C. Zhou, P.-Y. Hou, Y. Xu, L.-M. Duan
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-62573-5
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