Toward Scalable Boson Sampling with Photon Loss
Abstract
Boson sampling is a well-defined task that is strongly believed to be intractable for classical computers, but can be efficiently solved by a specific quantum simulator. However, an outstanding problem for large-scale experimental boson sampling is the scalability. Here we report an experiment on boson sampling with photon loss, and demonstrate that boson sampling with a few photons lost can increase the sampling rate. Our experiment uses a quantum-dot-micropillar single-photon source demultiplexed into up to seven input ports of a 16*16 mode ultra-low-loss photonic circuit, and we detect three-, four- and five-fold coincidence counts. We implement and validate lossy boson sampling with one and two photons lost, and obtain sampling rates of 187 kHz, 13.6 kHz, and 0.78 kHz for five-, six- and seven-photon boson sampling with two photons lost, which is 9.4, 13.9, and 18.0 times faster than the standard boson sampling, respectively. Our experiment shows an approach to significantly enhance the sampling rate of multiphoton boson sampling.
Cite
@article{arxiv.1801.08282,
title = {Toward Scalable Boson Sampling with Photon Loss},
author = {Hui Wang and Wei Li and Xiao Jiang and Yu-Ming He and Yu-Huai Li and Xing Ding and Ming-Cheng Chen and Jian Qin and Cheng-Zhi Peng and Christian Schneider and Martin Kamp and Wei-Jun Zhang and Hao Li and Li-Xing You and Zhen Wang and Jonathan P. Dowling and Sven Hofling and Chao-Yang Lu and Jian-Wei Pan},
journal= {arXiv preprint arXiv:1801.08282},
year = {2018}
}
Comments
10 pages, 12 figures, submitted