2013/09/26 by Dariusz Chruściński, Gniewomir Sarbicki · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Combinatorics #Conjecture #Entanglement witness #Mathematical analysis #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Separable space #Squashed entanglement #quant-ph
paper · pdf · doi:10.1088/1751-8113/47/19/195301
published as J. Phys. A: Math. Theor. 47, 195301 (2014) · 3 pages; minor changes
arxiv created 2013/09/26 · openalex publication_date 2014/04/23 · arxiv updated 2014/12/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We disprove the conjecture that structural physical approximations to optimal entanglement witnesses are separable states. The conjecture holds true for extremal decomposable entanglement witnesses.