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Abstract
This paper investigates the collective non-Hermitian dynamics of two optically coupled nanoparticles exhibiting fully tunable non-reciprocal interaction. Parity-time symmetry breaking is observed, and, with sufficiently strong coupling, a collective mechanical lasing transition occurs, resulting in stable limit cycle particle motion. This work explores non-equilibrium multi-particle effects, controllable through individual site manipulation in a tweezer array.
Publisher
Nature Physics
Published On
Jul 25, 2024
Authors
Manuel Reisenbauer, Henning Rudolph, Livia Egyed, Klaus Hornberger, Anton V. Zasedatelev, Murad Abuzarli, Benjamin A. Stickler, Uroš Delić
Tags
non-Hermitian dynamics
optically coupled nanoparticles
parity-time symmetry breaking
mechanical lasing
multi-particle effects

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