2009/01/08 by Chang‐shui Yu, Chang-shui Yu, He-shan Song +1 · 1 citation
Computer Science · Physics and Astronomy · #Cluster state #Concurrence #Multipartite entanglement #Negativity effect #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Quantum state #Qubit #Squashed entanglement #State (computer science) #Theoretical physics #Type (biology) #W state #quant-ph
paper · pdf · doi:10.1016/j.physleta.2008.12.058
published as Physics Letters A 373, 727(2009) · 10 pages
openalex publication_date 2009/01/08 · arxiv created 2009/01/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present an interesting monogamy equation for (2 ⊗ 2 ⊗ n)-dimensional pure states, by which a quantity is found to characterize the tripartite entanglement with the GHZ type and W typeentanglements as a whole. In particular, we, for the first time, reveals that for any quantum state of a pair of qubits, the difference between the two remarkable entanglement measures, concurrence and negativity, characterizes the W type entanglement of tripartite pure states with the two-qubit state as reduced density.