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

. 2018 Apr 20;4(4):eaao6814. doi: 10.1126/sciadv.aao6814

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

Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

PMC Copyright notice

Fig. 3 — The signal is sent directly toward the detector, whereas the idler photon becomes a polariton when entering the sample. (A) Real (Re; left) and imaginary (Im; right) components of the density matrix for the source of photon pairs without the sample. The concurrence is not one because the operation wavelength is not optimal for the source. (B) Real (left) and imaginary (right) components of the density matrix when passing through the microcavity. The concurrence of 0.806 shows that polaritons retain the entanglement.