We present here an all-optical scheme for the experimental realization of a quantum phase gate. It is based on the polarization degree of freedom of two traveling single-photon wave packets and exploits giant Kerr nonlinearities that can be attained in coherently driven ultracold atomic media.
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| http://dx.doi.org/10.1103/PhysRevLett.90.197902 | DOI Listing |
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