Realization of a photonic CNOT gate sufficient for quantum computation

2004/04/20 by Sara Gasparoni, Jian-Wei Pan, Philip Walther +2 · 2 citations
Physics and Astronomy · #quant-ph

paper · pdf · doi:10.1103/physrevlett.93.020504

published as Phys. Rev Lett. 93, 020504 (2004) · 4 pages 4 figures, sumbitted to PRL

arxiv created 2004/04/20 · arxiv updated 2009/12/01

Abstract

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 the use only of linear optics, an entangled ancillary pair of photons and post-selection. The techniques developed in our experiment will be of significant importance for quantum information processing with linear optics.

Cited by

• Deterministic linear-optical computing with symmetry-based qubits
• Computing-heightened low-cost high-dimensional controlled-SUM gates