Decoherence-free Behaviors of Quantum Emitters in Dissipative Photonic Graphene

• URL: http://arxiv.org/abs/2603.09700v1
• Date: Tue, 10 Mar 2026 14:09:03 GMT
• Title: Decoherence-free Behaviors of Quantum Emitters in Dissipative Photonic Graphene
• Abstract summary: We analytically explore the quantum dynamics of emitters coupled to photonic graphene.<n>Within a finite lattice, the excitation of single quantum emitter stabilizes in a decoherence-protected quantum state.<n>This capability can be extended to topological graphenic platforms.
• Score: 1.3483884526104932
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Achieving decoherence-free quantum state manipulation is a paramount goal in modern quantum technologies. To this end, we demonstrate its implementation in a two-dimensional dissipative photonic graphene featuring exceptional rings. Employing the resolvent method, we analytically explore the quantum dynamics of emitters coupled to photonic graphene. In the thermodynamic limit, our analysis predicts a dissipation-dependent logarithmic relaxation for a single quantum emitter, alongside a pronounced quantum Zeno effect that slows the decay with increased dissipation. Notably, within a finite lattice, the excitation of single quantum emitter stabilizes in a decoherence-protected quantum state, which is identified as a dissipation-robust quasilocalized state. Interestingly, this state, together with a dark state, facilitates decoherence-free interactions between quantum emitters. This capability can be extended to topological graphenic platforms, where edge states mediate analogous protected interactions among giant atoms. Our findings highlight a promising path toward protecting quantum coherence in practical, high-dimensional photonic environment through dissipation engineering.

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