Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 Jul 24;8:15971. doi: 10.1038/ncomms15971

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2017, The Author(s)

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

Two-photon correlation functions in the polarization basis (a) and energy–time basis (b) as a function of the variable phase shift introduced in Alice’s measurement module. Each data point was evaluated from two-photon detection events accumulated over a 10 s integration time, without subtraction of accidental counts. The error bars that denote the 3-σ s.d. due to Poissonian count statistics are smaller than the data markers. The best fit functions (least-mean-square fit to the expected two-photon correlation in presence of experimental imperfections) exhibit visibilities in the polarization basis (blue line) and in the energy–time basis (orange line). Almost no interference was observed when the energy–time to polarization transfer set-up was introduced in Alice’s detection module only (yellow line, ).

Inline graphic — Two-photon correlation functions in the polarization basis (a) and energy–time basis (b) as a function of the variable phase shift introduced in Alice’s measurement module. Each data point was evaluated from two-photon detection events accumulated over a 10 s integration time, without subtraction of accidental counts. The error bars that denote the 3-σ s.d. due to Poissonian count statistics are smaller than the data markers. The best fit functions (least-mean-square fit to the expected two-photon correlation in presence of experimental imperfections) exhibit visibilities in the polarization basis (blue line) and in the energy–time basis (orange line). Almost no interference was observed when the energy–time to polarization transfer set-up was introduced in Alice’s detection module only (yellow line, ).