BosonSampling with single-photon Fock states from a bright solid-state source
Abstract
A BosonSampling device is a quantum machine expected to perform tasks intractable for a classical computer, yet requiring minimal non-classical resources as compared to full-scale quantum computers. Photonic implementations to date employed sources based on inefficient processes that only simulate heralded single-photon statistics when strongly reducing emission probabilities. BosonSampling with only single-photon input has thus never been realised. Here, we report on a BosonSampling device operated with a bright solid-state source of single-photon Fock states with high photon-number purity: the emission from an efficient and deterministic quantum dot-micropillar system is demultiplexed into three partially-indistinguishable single-photons, with a single-photon purity of , interfering in a linear optics network. Our demultiplexed source is between one and two orders-of-magnitude more efficient than current heralded multi-photon sources based on spontaneous parametric downconversion, allowing us to complete the BosonSampling experiment faster than previous equivalent implementations.
Cite
@article{arxiv.1603.00054,
title = {BosonSampling with single-photon Fock states from a bright solid-state source},
author = {J. C. Loredo and M. A. Broome and P. Hilaire and O. Gazzano and I. Sagnes and A. Lemaitre and M. P. Almeida and P. Senellart and A. G. White},
journal= {arXiv preprint arXiv:1603.00054},
year = {2017}
}
Comments
Updated version. 11 pages, 8 figures