2007/02/07 by Wojciech Wasilewski, Konrad Banaszek · 2 citations
Computer Science · Physics and Astronomy · #Artificial intelligence #Code (set theory) #Computer science #Erasure #Optics #Photon #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum computer #Quantum entanglement #Quantum error correction #Quantum information science #Quantum mechanics #Quantum network #Quantum optics #Qubit #Set (abstract data type) #Subspace topology #quant-ph
paper · pdf · doi:10.1103/physreva.75.042316
published as Phys. Rev. A 75, 042316 (2007)
arxiv created 2007/02/07 · openalex publication_date 2007/04/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider quantum error-correction codes for multimode bosonic systems, such as optical fields, that are affected by amplitude damping. We demonstrate that the most accessible method of transforming optical systems with the help of passive linear networks has limited usefulness in preparing and manipulating such codes. These limitations stem directly from the recoverability condition for one-photon loss. We introduce a three-photon code protecting against the first order of amplitude damping, i.e., a single photon loss, and discuss its preparation using linear optics with single-photon sources and conditional detection. Quantum state and process tomography in the code subspace can be implemented using passive linear optics and photon counting. An experimental proof-of-principle demonstration of elements of the proposed quantum error correction scheme for a one-photon erasure lies well within present technological capabilities.