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Study Reveals Quantum Dynamics Shaped by Exceptional Points

10/21/2025

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Summary

Story summary

Researchers from Shanghai Jiao Tong University and IEM-CSIC study the Sachdev-Ye-Kitaev model and find that its return to equilibrium is shaped by exceptional points in its energy landscape.
The exceptional points mark where conventional theories fail to describe the system's dynamics.
As environmental interaction increases, the system's relaxation slows or reverses, indicating a critical value marks a transition in its properties that affects quantum coherence.

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Story summary

Researchers from Shanghai Jiao Tong University and IEM-CSIC study the Sachdev-Ye-Kitaev model and find that its return to equilibrium is shaped by exceptional points in its energy landscape.
The exceptional points mark where conventional theories fail to describe the system's dynamics.
As environmental interaction increases, the system's relaxation slows or reverses, indicating a critical value marks a transition in its properties that affects quantum coherence.