Proposes a four-channel dissipative coupling model realizing fourth-order exceptional surfaces with characteristic fourth-order response to perturbations like laser detuning, realizable in thermal atomic systems.
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Sensitivity Enhancement near High-Order Exceptional Points via Dissipative Couplings
Proposes a four-channel dissipative coupling model realizing fourth-order exceptional surfaces with characteristic fourth-order response to perturbations like laser detuning, realizable in thermal atomic systems.