Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

  • Quantum Teleportation, Swapping Proved

Photonics Spectra
Mar 2002
The teleportation and swapping of quantum states has been predicted in theory and presumed to be true in reality. Now researchers at Universität Wien in Vienna, Austria, have confirmed the phenomena experimentally.

In the Jan. 7 issue of Physical Review Letters, they described how they employed two-pass down-conversion of 394-nm radiation in BBO to generate two entangled pairs of photons for Bell-state and polarization analysis. The setup displayed a Bell parameter of 2.421 ±0.091 for the Clauser-Horne-Shimony-Holt inequality, violating the classical limit by 4.6 standard deviations, and enabled them to perform a delayed-choice experiment -- projecting the pairs into entanglement by subjecting them to different measurements after their polarizations had been recorded.

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!