Realization of a Photonic CNOT Gate sufficient for Quantum Computation

Author(s): S. Gasparoni, J. W. Pan, P. Walther, T. Rudolph, A. Zeilinger

Journal: Physical Review Letters

Volume: 93

Page(s): 020504

Year: 2004

DOI Number: 10.1103/PhysRevLett.93.020504

Link: Link to publication


We report the first experimental demonstration of a quantum controlled-NOT gate for different photons, which is classically feed forwardable. In the experiment, we achieved this goal with only the use of linear optics, an entangled ancillary pair of photons, and postselection. The techniques developed in our experiment are of significant importance for quantum information processing with linear optics.

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