Transition of Photonic Dissipative Dynamics through the Exceptional Point
Abstract
The decay of light in an optical structure depends not only on the intrinsic properties of the material but also on the surrounding electromagnetic environment. This principle has laid the foundation for the engineering of dissipation in photonic emitters. In the conventional wisdom, dissipation is governed by a fixed set of decay channels, each defined by the eigenstates of the structure, and energy leaks through and interacts with these channels. Here we provide experimental evidence that this paradigm fails in non-Hermitian systems. Specifically, we observe an accelerated transient decay in a pair of coupled microcavities tuned near the exceptional point, revealing that photonic dissipation can be governed not by reconfiguring existing loss channels, but rather by restructuring the underlying state space. The universality of this phenomenon is corroborated through two independent control parameters.The finding provides a new perspective on dissipative dynamics in open optical systems and offers a distinct mechanism for controlling transient decay in ultrafast photonic systems.
Related
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BibTeX
@misc{cui2026transition,
title = {{Transition of Photonic Dissipative Dynamics through the Exceptional Point}},
author = {Yue Cui and Ruihen Jin and Xiong Jiang and Kaiyang Wang and Can Huang and Qinghai Song},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.10061},
eprint = {2609.10061},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.10061},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Transition of Photonic Dissipative Dynamics through the Exceptional Point
AU - Yue Cui
AU - Ruihen Jin
AU - Xiong Jiang
AU - Kaiyang Wang
AU - Can Huang
AU - Qinghai Song
PY - 2026
DA - 2026/09/09
PB - arXiv
DO - 10.48550/arxiv.2609.10061
UR - https://arxiv.org/abs/2609.10061
AB - The decay of light in an optical structure depends not only on the intrinsic properties of the material but also on the surrounding electromagnetic environment. This principle has laid the foundation for the engineering of dissipation in photonic emitters. In the conventional wisdom, dissipation is governed by a fixed set of decay channels, each defined by the eigenstates of the structure, and energy leaks through and interacts with these channels. Here we provide experimental evidence that this paradigm fails in non-Hermitian systems. Specifically, we observe an accelerated transient decay in a pair of coupled microcavities tuned near the exceptional point, revealing that photonic dissipation can be governed not by reconfiguring existing loss channels, but rather by restructuring the underlying state space. The universality of this phenomenon is corroborated through two independent control parameters.The finding provides a new perspective on dissipative dynamics in open optical systems and offers a distinct mechanism for controlling transient decay in ultrafast photonic systems.
ER -