Reconfigurable quantum fluid molecules of bound states in the continuum

Abstract

Topological bound states in the continuum are confined wave-mechanical objects that offer advantageous ways to enhance light-matter interactions in compact photonic devices. In particular, their large quality factor in the strong-coupling regime has recently enabled the demonstration of Bose-Einstein condensation of bound-state-in-the-continuum polaritons. Here, we show that condensation into a negative-mass bound state in the continuum exhibits interaction-induced state confinement, opening opportunities for optically reprogrammable molecular arrays of quantum fluids of light. We exploit this optical trapping mechanism to demonstrate that such molecular complexes show hybridization with macroscopic modes with unusual topological charge multiplicity. Additionally, we demonstrate the scalability of our technique by constructing extended mono- and diatomic chains of bound-state-in-the-continuum polariton fluids that display non-Hermitian band formation and the opening of a minigap. Our findings offer insights into large-scale, reprogrammable, driven, dissipative many-body systems in the strong-coupling regime.

References in corpus (15)

• Topological nature of bound states in the radiation continuum
• Strongly Interacting Polaritons in Coupled Arrays of Cavities
• Exciton-polariton condensates
• Tools for quantum simulation with ultracold atoms in optical lattices
• Coherent Oscillations in an Exciton-Polariton Josephson Junction
• Polariton Bose-Einstein condensate from a Bound State in the Continuum
• Engineering the spatial confinement of exciton-polaritons in semiconductors
• Spin order and phase transitions in chains of polariton condensates
• Realization of room temperature polaritonic vortex in momentum space with hybrid Perovskite metasurface
• Annihilation of exceptional points from different Dirac valleys in a 2D photonic system
• Thermally Condensing Photons into a Coherently Split State of Light
• Negative-mass exciton polaritons induced by dissipative light-matter coupling in an atomically thin semiconductor
• Fabrication of Nanostructured GaAs/AlGaAs Waveguide for Low-Density Polariton Condensation from a Bound State in the Continuum
• Theory of exciton-polariton condensation in gap-confined eigenmodes
• Interactions of the solitons in periodic driven-dissipative systems supporting quasi-BIC states

Cited by in corpus (8)

• Spin-Orbit-Locking Chiral Bound States in the Continuum
• Emerging supersolidity from a polariton condensate in a photonic crystal waveguide
• Inherent spin-orbit locking in topological bound state in the continuum lasing
• Meron Spin Textures in Momentum Space Spawning from Bound States in the Continuum
• Dirac exciton-polariton condensates in photonic crystal gratings
• Optically trapped exciton-polariton condensates in a perovskite microcavity
• Geometric control of hyperbolic exciton-polariton condensate dimers
• Transverse instability of hybrid solitons in the strong light-matter coupling regime