Abstract
An outstanding goal in quantum optics and scalable photonic quantum technology is to develop a source that each time emits one and only one entangled photon pair with simultaneously high entanglement fidelity, extraction efficiency, and photon indistinguishability. By coherent two-photon excitation of a single InGaAs quantum dot coupled to a circular Bragg grating bullseye cavity with broadband high Purcell factor up to 11.3, we generate entangled photon pairs with a state fidelity of 0.90(1), pair generation rate of 0.59(1), pair extraction efficiency of 0.62(6), and photon indistinguishability of 0.90(1) simultaneously. Our work will open up many applications in high-efficiency multi-photon experiments and solid-state quantum repeaters.
| Original language | English |
|---|---|
| Article number | 113602 |
| Journal | Physical Review Letters |
| Volume | 122 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 22 Mar 2019 |
Fingerprint
Dive into the research topics of 'On-demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver