Highly efficient and indistinguishable single-photon sources via phonon-decoupled two-color excitation

Abstract

Single-photon sources with near-unity efficiency and indistinguishability play a major role in the development of quantum technologies. However, on-demand excitation of the emitter imposes substantial limitations to the source performance. Here, we show that coherent two-color pumping allows for population inversion arbitrarily close to unity in bulk quantum dots thanks to a decoupling effect between the emitter and its phonon bath. Driving a micropillar single-photon source with this scheme, we calculate very high photon emission into the cavity mode (0.95 photons per pulse) together with excellent indistinguishability (0.975) in a realistic configuration, thereby removing the limitations imposed by the excitation scheme on single-photon source engineering.

Replacement of a previous version entitled "Phonon-decoupled di-chromatic pumping scheme for highly efficient and indistinguishable single-photon sources"

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Cited by in corpus (10)

• Information processing at the speed of light
• Swing-up dynamics in quantum emitter cavity systems
• Single-photon emitters in WSe${}_2$: Critical role of phonons on excitation schemes and indistinguishability
• Temperature-independent almost perfect photon entanglement from quantum dots via the SUPER scheme
• One-dimensional photonic wire as a single-photon source: Implications of cavity QED to a phonon bath of reduced dimensionality
• Understanding and utilizing the inner bonds of process tensors
• Many-Body Entanglement in Solid-State Emitters
• Input-Output Hierarchical Equations Of Motion
• SUPER excitation of quantum emitters is a multi-photon process
• Quantum-dot single photon source performance with off-resonant pulse preparation schemes