12-Photon Entanglement and Scalable Scattershot Boson Sampling with Optimal Entangled-Photon Pairs from Parametric Down-Conversion.
Abstrak
Entangled-photon sources with simultaneously near-unity heralding efficiency and indistinguishability are the fundamental elements for scalable photonic quantum technologies. We design and realize a degenerate telecommunication wavelength entangled-photon source from an ultrafast pulsed laser pumped spontaneous parametric down-conversion (SPDC), which shows simultaneously 97% heralding efficiency and 96% indistinguishability between independent single photons without narrow-band filtering. Such a beamlike and frequency-uncorrelated SPDC source allows generation of the first 12-photon genuine entanglement with a state fidelity of 0.572±0.024. We further demonstrate a blueprint of scalable scattershot boson sampling using 12 SPDC sources and a 12×12 mode interferometer for three-, four-, and five-boson sampling, which yields count rates more than 4 orders of magnitude higher than all previous SPDC experiments.
Penulis (20)
Han-Sen Zhong
Y. Li
Wei Li
Li-Chao Peng
Z. Su
Yi Hu
Yu-Ming He
X. Ding
Weijun Zhang
Hao Li
Lu Zhang
Zhen Wang
L. You
Xi-Lin Wang
Xiao Jiang
Li Li
Yu-Ao Chen
Nai-Le Liu
Chaoyang Lu
Jian-Wei Pan
Akses Cepat
- Tahun Terbit
- 2018
- Bahasa
- en
- Total Sitasi
- 323×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1103/PhysRevLett.121.250505
- Akses
- Open Access ✓