Ad Astra Awards
Ad Astra Journal
Science library
White book
University rankings
Who's who
Publications
Theses and dissertations
Ad Astra association
 
Press releases
News
Events
Funding opportunities
 
Login
Registration
 
>> Românã
 
   
 

Iulia Ghiu and A. Karlsson. Broadcasting of entanglement at a distance using linear optics and telecloning of entanglement. Physical Review A, 72, p. 032331, 2005.

Abstract: We propose a scheme for broadcasting entanglement at a distance based on linear optics. We show that an initial polarization entangled state can be simultaneously split and transmitted to a pair of observers situated at different locations with the help of two conditional Bell-state analyzers based on two beam splitters characterized by the same reflectivity R. In particular for R=1/3, the final states coincide with the output states obtained by the broadcasting protocol proposed by Buzek et al. [Phys. Rev. A 55, 3327 (1997)]. Further we present a different protocol called telecloning of entanglement, which combines the many-to-many teleportation and nonlocal optimal asymmetric cloning of an arbitrary entangled state. This scheme allows the optimal transmission of the two nonlocal optimal clones of an entangled state to two pairs of spatially separated receivers.

Keywords: broadcasting of entanglement

URL: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000072000003032331000001&idtype=cvips&gifs=yes

Posted by Iulia Ghiu

Back

   
© Ad Astra 2001-2013