2006/10/22 by Shangbin Li, Shang-Bin Li · 10 citations
Computer Science · Mathematics · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Condensed matter physics #Coupling (piping) #Coupling strength #Density matrix #Excitation #Field (mathematics) #Materials science #Mathematics #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Quantum optics and atomic interactions #Resonance (particle physics) #State (computer science) #Symmetry (geometry) #quant-ph
paper · pdf · doi:10.1103/physreva.75.054304
published in Physical Review A 75(5) (American Physical Society) · 5 pages, 5 figures
arxiv created 2006/10/22 · openalex publication_date 2007/05/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A scheme for generating the maximally entangled mixed state of two atoms on-resonance asymmetrically coupled to a single mode optical cavity field is presented. The part frontier of both maximally entangled mixed states and maximal Bell violating mixed states can be approximately reached by the evolving reduced density matrix of two atoms if the ratio of coupling strengths of two atoms is appropriately controlled. It is also shown that exchange symmetry of global maximal concurrence is broken if and only if coupling strength ratio lies between (√(3))/(3) and √(3) for the case of one-particle excitation and asymmetric coupling, while this partial symmetry breaking cannot be verified by detecting maximal Bell violation.