Linear optical Fredkin gate based on partial-SWAP gate

2008/09/15 by Jaromı́r Fiurášek, Jaromir Fiurasek · 4 citations
Computer Science · Engineering · Physics and Astronomy · #Optical Network Technologies #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physreva.78.032317

published as Phys. Rev. A 78, 032317 (2008) · 6 pages, 3 figures, RevTeX4

openalex publication_date 2008/09/15 · arxiv created 2008/09/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a scheme for linear optical quantum Fredkin gate based on the combination of recently experimentally demonstrated linear optical partial-SWAP gate and controlled-Z gates. Both heralded gate and simplified post-selected gate operating in the coincidence basis are designed. The suggested setups have a simple structure and require stabilization of only a single Mach-Zehnder interferometer. A proof-of-principle experimental demonstration of the post-selected Fredkin gate appears to be feasible and within the reach of current technology.

Citations

• Resource-Efficient Linear Optical Quantum Computation

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