Tripartite Quantum Correlations under Power‐Law and Random Telegraph Noises: Collective Effects of Markovian and Non‐Markovian Classical Fields. Issue 5 (17th March 2022)

• Record Type: Journal Article
• Authors: Rahman, Atta Ur; Haddadi, Saeed; Pourkarimi, Mohammad Reza
• Is Part Of: Annalen der Physik. Volume 534:Issue 5(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-17
• Subjects: decoherence -- entanglement -- Markovian noise, non‐Markovian noise -- pure classical fields, mixed classical fields; Physics -- Periodicals; Chemistry -- Periodicals; 530.05
• DOI: 10.1002/andp.202100584
• Languages: English
• ISSNs: 0003-3804

Abstract

Abstract: The collective effects of Markovian and non‐Markovian classical fields on the dynamics of entanglement, coherence, and quantum state mixing in a three‐qubit mixed entangled state are examined. Three independent local fields are considered to be influenced by the decoherence effects of two different mixed noisy models: Markovian maximized and non‐Markovian maximized local random configurations. Power‐law noise characterizes two classical environments in the first case, whereas random telegraph noise governs the third. Random telegraph noise rules two classical environments in the latter example, whereas power‐law noise governs the third. In classical fields, non‐Markovian effects are more robust and have a stronger character than Markovian effects, yet both are driven by relevant noises. Non‐Markovianity vanishes at the upper bound of the Markovian noise parameters. Markovian effects are found to be vulnerable to the environments non‐Markovianity and longer memory features. The strength of Markovianity and non‐Markovianity is only moderately affected by the type of environment, but noise parameter optimization has a significant impact. Initial and final limits are provided for the restriction and relaxation in Markovianity and non‐Markovianity of the classical fields for the actual deployment of non‐local protocols. Abstract : The combined implications of Markovianity and non‐Markovianity on the dynamics of tripartite entanglement, purity, and coherence are investigated using mixed classical channels. In quantum information processing, classical channels have been discovered to be critical resources. For improved performance of local channels, parameter optimization and other strategies are being developed, allowing for longer information preservation.