Pixel Entanglement: Experimental Realization of Optically Entangled d=3 and d=6 Qudits

Malcolm N. O’Sullivan-Hale, Irfan Ali Khan, Robert W. Boyd, and John C. Howell
Phys. Rev. Lett. 94, 220501 – Published 7 June 2005

Abstract

We demonstrate a simple experimental method for creating entangled qudits. Using transverse-momentum and position entanglement of photons emitted in spontaneous parametric down-conversion, we show entanglement between discrete regions of space, i.e., pixels. We map each photon onto as many as six pixels, where each pixel represents one level of our qudit state. The method is easily generalizable to create even higher dimensional, entangled states. Thus, the realization of quantum information processing in arbitrarily high dimensions is possible, allowing for greatly increased information capacity.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 25 May 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.220501

©2005 American Physical Society

Authors & Affiliations

Malcolm N. O’Sullivan-Hale1,*, Irfan Ali Khan2, Robert W. Boyd1,2, and John C. Howell2

  • 1The Institute of Optics, University of Rochester, Rochester, New York 14627, USA
  • 2The Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA

  • *Electronic address: osulliva@optics.rochester.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 94, Iss. 22 — 10 June 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×