2016/01/31 by DaeKil Park · 16 citations
Computer Science · Mathematics · Physics and Astronomy · #Concurrence #Markov process #Mathematics #Multipartite entanglement #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Squashed entanglement #Statistical physics #Statistics #Type (biology) #quant-ph
paper · pdf · doi:10.1007/s11128-016-1331-y
published in Quantum Information Processing 15(8), 3189-3208 (Springer Science+Business Media) · 19pages, 7 pdf figures V2: 24 pages, 11 figures, will appear in QIP
openalex publication_date 2016/05/03 · arxiv created 2016/05/13 · arxiv updated 2016/05/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study on the tripartite entanglement dynamics when each party is initially entangled with other parties, but they locally interact with their own non-Markovian environment. First, we consider three GHZ-type initial states, all of which have GHZ symmetry provided that the parameters are chosen appropriately. However, this symmetry is broken due to the effect of environment. The corresponding π-tangles, one of the tripartite entanglement measure, are analytically computed at arbitrary time. The revival phenomenon of entanglement occurs after complete disappearance of entanglement. We also consider two W-type initial states. The revival phenomenon also occurs in this case. On the analytical ground the robustness issue against the effect of environment is examined for both GHZ-type and W-type initial states.