Format

Send to

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2004 Jan 30;92(4):047902. Epub 2004 Jan 30.

Optimal quantum cloning on a beam splitter.

Author information

1
Department of Physics, University of California, Santa Barbara, CA 93106, USA

Abstract

We demonstrate how a beam splitter in combination with different light sources can be used as an optimal universal 1-->2 quantum cloner and as an optimal universal quantum NOT machine for the polarization qubit of a single photon. For the cloning a source of single photons with maximally mixed polarization is required and for the NOT operation a source of maximally entangled photon pairs. We demonstrate both operations with near optimal fidelity. Our scheme can be generalized in a natural way to clone and NOT the spin state of electrons.

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Support Center