2008/01/31 by Shuxin Shao, HONGBAO ZHANG, Song He +3
Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #Noncommutative and Quantum Gravity Theories #Quantum and Classical Electrodynamics #gr-qc #hep-th #quant-ph
paper · pdf · doi:10.1142/s0219749909005225
published as IJQI7, 539-545(2009) · 3 pages, 1 figure, version to appear in Int. J. Quant. Inf
arxiv created 2009/01/21 · openalex publication_date 2009/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the Lorentz transformation of the reduced helicity density matrix for a pair of massive spin 1/2 particles. The corresponding Wootters concurrence shows no invariant meaning, which implies that we can generate helicity entanglement simply by the transformation from one reference frame to another. The difference between the helicity and spin case is also discussed.