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Quantum Information Processing

Characterization of classical static noise via qubit as probe

Muhammad Javed, Salman Khan, Sayed Arif Ullah

Published Jan 25, 2018• 13 citations
Publisher
DOI
10.1007/s11128-018-1817-x

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Multi-qubit entanglement could act as a useful resource for many quantum information communication and processing tasks like quantum networking processes. Genuine non-trivial multi-qubit entanglement could delineates quantum physics from classical physics. Detection of multipartite entanglement however is a theoretical and experimental challenge. A useful tool for this purpose are entanglement witnesses. Recently, we provide an analytical construction of multi-qubit entanglement witnesses using static structure factors (SSF) and study the robustness of the witnesses with respect to noise. In this article, we consider the effectiveness of the entanglement witness based on SSF for probing spin chain.