Signatures of Quantum Coherence in Rydberg Excitons

Abstract

Coherent optical control of individual particles has been demonstrated both for atoms and semiconductor quantum dots. Here we demonstrate the emergence of quantum coherent effects in semiconductor Rydberg excitons in bulk Cu${}_2$O. Due to the spectral proximity between two adjacent Rydberg exciton states, a single-frequency laser may pump both resonances with little dissipation from the detuning. As a consequence, additional resonances appear in the absorption spectrum that correspond to dressed states consisting of two Rydberg exciton levels coupled to the excitonic vacuum, forming a V-type three-level system, but driven only by one laser light source. We show that the level of pure dephasing in this system is extremely low. These observations are a crucial step towards coherently controlled quantum technologies in a bulk semiconductor.

7 pages, 7 figures; substantially rewritten, close to published version including supplemental material

References in corpus (5)

• Giant Rydberg Excitons in Cuprous Oxide
• Resonance fluorescence from a coherently driven semiconductor quantum dot in a cavity
• Observation of high angular momentum excitons in cuprous oxide
• Deviations of the exciton level spectrum in cuprous oxide from the hydrogen series
• Propagation of Nonclassical Radiation through a Semiconductor Slab

Cited by in corpus (27)

• Observation of Rydberg exciton polaritons and their condensate in a perovskite cavity
• Scaling laws of Rydberg excitons
• Cu${}_2$O Microcrystals Grown on Silicon as Platform for Quantum-Degenerate Excitons and Rydberg States
• Rydberg excitons in the presence of an ultralow-density electron-hole plasma
• High resolution study of the yellow excitons in Cu${}_2$O subject to an electric field
• The even exciton series in Cu${}_2$O
• Magnetoexcitons in cuprous oxide
• Interaction of Rydberg Excitons in Cuprous Oxide with Phonons and Photons: Optical Linewidth and Polariton Effect
• Single-photon source based on Rydberg exciton blockade
• Giant Rydberg excitons in Cu${}_2$O probed by photoluminescence excitation spectroscopy
• Magnetoexcitons break antiunitary symmetries
• Microwave-optical coupling via Rydberg excitons in cuprous oxide
• The phonon assisted absorption of excitons in Cu${}_2$O
• GOE-GUE-Poisson transitions in the nearest neighbor spacing distribution of magnetoexcitons
• Electromagnetically induced transparency with Cu${}_2$O excitons in the presence of phonon coupling
• Quantum confined Rydberg excitons in Cu${}_2$O nanoparticles
• Exciton-polaritons in cuprous oxide: Theory and comparison with experiment
• Electro-optical properties of Cu${}_2$O in the regime of Franz-Keldysh oscillations
• High resolution nanosecond spectroscopy of even-parity Rydberg excitons in Cu${}_2$O
• Interseries transitions between Rydberg excitons in Cu${}_2$O
• Waveguides for Rydberg excitons in Cu${}_{\text{2}}$O from strain traps
• Crossover between the Gaussian orthogonal ensemble, the Gaussian unitary ensemble, and Poissonian statistics
• Energy states of Rydberg excitons in finite crystals: From weak to strong confinement
• Exciton-phonon interaction breaking all antiunitary symmetries in external magnetic fields
• Coherent transfer matrix analysis of the transmission spectra of Rydberg excitons in Cuprous Oxide
• Quantum many-body effects on Rydberg excitons in cuprous oxide
• Interseries dipole transitions from yellow to green excitons in cuprous oxide