Genuine Counterfactual Communication with a Nanophotonic Processor

I. Alonso Calafell (Corresponding author), T. Strömberg, D. R. M. Arvidsson-Shukur, L. A. Rozema, V. Saggio, C. Graganti, N. C. Harris, M. Prabhu, J. Carolan, M. Hochberg, T. Baehr-Jones, D. Englund, C. H. W. Barnes, P. Walther

Publications: Contribution to bookContribution to proceedingsPeer Reviewed


In counterfactual communication particles and information can travel in opposite directions. With our high-fidelity programmable nanophotonic processor we implement the first trace-free counterfactual protocol without post-selection with a counterfactual violation as low as 2.4%.

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics, CLEO 2019 - Proceedings
Subtitle of host publicationproceedings : San Jose, California, USA, 5-10 May 2019 / OSA
Place of PublicationPiscataway, NJ
Number of pages2
ISBN (Electronic)9781943580576
ISBN (Print)978-1-7281-3718-6
Publication statusPublished - 2019
EventConference on Lasers and Electro-Optics (CLEO) - San Jose Convention Center, San Jose, Canada
Duration: 5 May 201910 May 2019

Publication series

SeriesConference on Lasers and Electro-Optics


ConferenceConference on Lasers and Electro-Optics (CLEO)
CitySan Jose
Internet address

Austrian Fields of Science 2012

  • 103026 Quantum optics

Cite this