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Open Quantum Systems Decoherence Photonic Quantum Computing

High-Q localized states in finite arrays of subwavelength resonators

arXiv
Authors: Danil F. Kornovan, Roman S. Savelev, Yuri S. Kivshar, Mihail I. Petrov

Year

2020

Paper ID

19054

Status

Preprint

Abstract Read

~2 min

Abstract Words

114

Citations

N/A

Abstract

We introduce a novel physical mechanism for achieving giant quality factors (Q-factors) in finite-length periodic arrays of subwavelength optical resonators. The underlying physics is based on interference between the band-edge mode and another standing mode in the array, and the formation of spatially localized states with dramatically suppressed radiative losses. We demonstrate this concept for an array of N dipoles with simultaneous cancellation of multipoles up to N-th order and the Q factor growing as Q propto N^α, where αgtrsim 6.88. Based on this finding, we propose a realistic array of Mie-resonant nanoparticles $N lesssim 29$ with a dramatic enhancement of the Purcell factor up to $sim $3400 achieved by tuning of the array parameters.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • We introduce a novel physical mechanism for achieving giant quality factors (Q-factors) in finite-length periodic arrays of subwavelength optical resonators.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.11791 [2] arXiv https://arxiv.org/abs/2011.11791 [3] Publisher https://arxiv.org/abs/2011.11791

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