Rydberg excitons in Cu 2 O: exaggerated quantum optical properties and emerging quantum phenomena [Invited]
Abstract
Over the past decade, Rydberg excitons in bulk Cu 2 O have emerged as a solid-state analog to atomic Rydberg systems, exhibiting exaggerated quantum optical properties including large dipole moments, strong dipole–dipole interactions, and enhanced nonlinear susceptibilities. High-resolution absorption spectroscopy has revealed elegant scaling laws with principal quantum number across temperatures from tens of mK to above 100 K. While many features follow a hydrogen-like model, non-hydrogenic effects arise from complex bandstructures and many-body interactions. This review summarizes experimental advances in accessing high- n Rydberg states and quantum phenomena arising from diverse exciton interaction mechanisms. It also discusses prospective quantum and nonlinear optical applications.
Fields of Study & Subjects
Copper-based nanomaterials and applications
Physics of Superconductivity and Magnetism
Semiconductor Quantum Structures and Devices
Publication details
- Journal / source
- Journal of the Optical Society of America B
- Publisher
- Optica Publishing Group
- Volume
- 43
- Issue
- 3
- Pages
- A227–A227
- Publication date
- 29 January 2026
- Language
- EN