2006/03/27 by C. Negrevergne, T. S. Mahesh, C. A. Ryan +15 · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Computer science #Hilbert space #Mathematics #Observable #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum computer #Quantum decoherence #Quantum error correction #Quantum mechanics #Quantum state #Qubit #Qutrit #Topology (electrical circuits) #quant-ph
paper · pdf · doi:10.1103/physrevlett.96.170501
11 pages, 4 figures, to be published in PRL
arxiv created 2006/03/27 · openalex publication_date 2006/05/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this Letter, we present an experimental benchmark of operational control methods in quantum information processors extended up to 12 qubits. We implement universal control of this large Hilbert space using two complementary approaches and discuss their accuracy and scalability. Despite decoherence, we were able to reach a 12-coherence state (or a 12-qubit pseudopure cat state) and decode it into an 11 qubit plus one qutrit pseudopure state using liquid state nuclear magnetic resonance quantum information processors.