NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

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.

PUBLICATIONS

Detection-Loophole-Free Test of Quantum Nonlocality, and Applications

Published

Author(s)

B. G. Christensen, Kevin McCusker, Joseph Altepeter, Brice R. Calkins, Thomas Gerrits, Adriana Lita, Aaron J. Miller, Krister Shalm, Sae Woo Nam, P. G. Kwiat

Abstract

We present a source of entangled photons that violates a Bell inequality free of the "fair-sampling" assumption, by over 50 standard deviations, and with enough "efficiency" overhead to eventually perform a fully loophole-free test of local realism. The entanglement quality is verified by maximally violating additional Bell tests, testing the upper limit of quantum correlations. Finally, we use the source to generate secure quantum random numbers at rates 5 orders of magnitude beyond previous experiments.
Citation
Science Magazine
Volume
111
Issue
13 - 27
Pub Type
Journals

Download Paper

DOI Link

Keywords

detection-loophole free Bell test, transition edge sensors
Quantum information science and Atomic / molecular / quantum

Citation

Christensen, B. , McCusker, K. , Altepeter, J. , Calkins, B. , Gerrits, T. , Lita, A. , Miller, A. , Shalm, K. , Nam, S. and Kwiat, P. (2013), Detection-Loophole-Free Test of Quantum Nonlocality, and Applications, Science Magazine, [online], https://doi.org/10.1103/PhysRevLett.111.130406 (Accessed October 9, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created September 25, 2013, Updated October 12, 2021
Was this page helpful?