Phys. Rev. Lett. 94, 100501 (2005) [4 pages]Generation of Entangled States of Qudits using Twin PhotonsReceived 25 January 2004; revised 11 October 2004; published 16 March 2005 We report an experiment to generate entangled states of D-dimensional quantum systems, qudits, by using transverse spatial correlations of two parametric down-converted photons. Apertures with D slits in the arms of the twin photons define the qudit space. By manipulating the pump beam correctly, the twin photons will pass only by symmetrically opposite slits, generating entangled states between these different paths. Experimental results for qudits with D=4 and 8 are shown. We demonstrate that the generated states are entangled states. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.100501
DOI:
10.1103/PhysRevLett.94.100501
PACS:
03.67.Mn, 03.65.Ud, 03.67.Hk, 42.65.Lm
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