Encoding information in the position of single photons has no known limits, given infinite resources. Using a heralded single-photon source and a Spatial Light Modulator (SLM), we steer single photons to specific positions in a virtual grid on a large-area spatially resolving photon-counting detector (ICCD). We experimentally demonstrate selective addressing any location (symbol) in a 9072 size grid (alphabet) to achieve 10.5 bit of mutual information between the sender and receiver per detected photon. Our results set the stage for very-high-dimensional quantum information processing.
@article{arxiv.1609.04200,
title = {Transmitting more than 10 bit with a single photon},
author = {T. B. H. Tentrup and T. Hummel and T. A. W. Wolterink and R. Uppu and A. P. Mosk and P. W. H. Pinkse},
journal= {arXiv preprint arXiv:1609.04200},
year = {2017}
}