Waveguides for Rydberg excitons in Cu${}_{\text{2}}$O from strain traps

Abstract

We investigate the formation of waveguides for Rydberg excitons in Cu${}_{\text{2}}$O from cylindrical stressors as alternatives to optical traps. We show that the achievable potential depths can easily reach the meV and the trap frequencies the GHz regimes. For Rydberg excitons, we find that it is sufficient to consider only the shift of the band gap, whereas the excitonic binding energies remain almost unchanged.

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• Rydberg Excitons in Synthetic Cuprous Oxide (Cu${}_2$O)
• Electromagnetically induced transparency with Cu${}_2$O excitons in the presence of phonon coupling
• Quantum confined Rydberg excitons in Cu${}_2$O nanoparticles
• Plasma-enhanced interaction and optical nonlinearities of Cu${}_2$O Rydberg excitons
• High resolution nanosecond spectroscopy of even-parity Rydberg excitons in Cu${}_2$O
• Magnetic Phases of Spatially-Modulated Spin-1 Chains in Rydberg Excitons: Classical and Quantum Simulations