Cavity Quantum Electrodynamics with Second-Order Topological Corner State

Abstract

Topological photonics provides a new paradigm in studying cavity quantum electrodynamics with robustness to disorder. In this work, we demonstrate the coupling between single quantum dots and the second-order topological corner state. Based on the second-order topological corner state, a topological photonic crystal cavity is designed and fabricated into GaAs slabs with quantum dots embedded. The coexistence of corner state and edge state with high quality factor close to 2000 is observed. The enhancement of photoluminescence intensity and emission rate are both observed when the quantum dot is on resonance with the corner state. This result enables the application of topology into cavity quantum electrodynamics, offering an approach to topological devices for quantum information processing.

17 pages, 3 figures

References in corpus (17)

• Topological Photonics
• Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Scheme to Achieve Silicon Topological Photonics
• Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal
• Electric Multipole Moments, Topological Multipole Moment Pumping, and Chiral Hinge States in Crystalline Insulators
• Reflection symmetric second-order topological insulators and superconductors
• Higher-order topological insulators and semimetals on the breathing Kagome and pyrochlore lattices
• Visualization of higher-order topological insulating phases in two-dimensional dielectric photonic crystals
• Direct observation of corner states in second-order topological photonic crystal slabs
• Linear and nonlinear optical spectroscopy of a strongly-coupled microdisk-quantum dot system
• Photonic crystal nanocavity based on a topological corner state
• Cavity Quantum Electrodynamics with Anderson-localized Modes
• Topolectrical-circuit octupole insulator with topologically protected corner states
• Quantum control of a spin qubit coupled to a photonic crystal cavity
• Quantum interference of topological states of light
• Enhanced Strong Interaction between Nanocavities and p-shell Excitons Beyond the Dipole Approximation