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Preprint

Bound states and photon emission in non-Hermitian nanophotonics. (submitted to Phys. Rev. A)

MPS-Authors

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Gong, Zongping
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
MCQST - Munich Center for Quantum Science and Technology, External Organizations;

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Bello Gamboa, Miguel
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
MCQST - Munich Center for Quantum Science and Technology, External Organizations;

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Malz, Daniel
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
MCQST - Munich Center for Quantum Science and Technology, External Organizations;

/persons/resource/persons256048

Kunst, Flore K.
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
MCQST - Munich Center for Quantum Science and Technology, External Organizations;

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Citation

Gong, Z., Bello Gamboa, M., Malz, D., & Kunst, F. K. (submitted). Bound states and photon emission in non-Hermitian nanophotonics. (submitted to Phys. Rev. A).

Abstract

We establish a general framework for studying the bound states and the
photon-emission dynamics of quantum emitters coupled to structured nanophotonic
lattices with engineered dissipation (loss). In the single-excitation sector,
the system can be described exactly by a non-Hermitian formalism. We have
pointed out in the accompanying letter [Gong \emph{et al}., arXiv:2205.05479]
that a single emitter coupled to a one-dimensional non-Hermitian lattice may
already exhibit anomalous behaviors without Hermitian counterparts. Here we
provide further detail on these observations. We also present several
additional examples on the cases with multiple quantum emitters or in higher
dimensions. Our work unveils the tip of the iceberg of the rich non-Hermitian
phenomena in dissipative nanophotonic systems.