2015/02/14 by Marek Sawerwain, Sawerwain, Marek, Joanna Wiśniewska +1
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.1502.04257
15 pages, 9 figures, small typos fix
openalex publication_date 2015/02/14 · arxiv created 2015/10/20 · arxiv updated 2015/10/21 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
The quantum entanglement is an important feature of many protocols in the field of quantum computing. In this paper we evaluate a level of entanglement in short qutrit chains. This evaluation is carried out with use of the CCNR criterion and the concurrence measure. We also present some explicit formulae describing the values of CCNR criterion and concurrence for exemplary short spin chains. Utilizing the obtained results, we indicate that analyzing the level of entanglement allows to detect the noise or deviation in the transfer process, in comparison to the perfect transfer where only operation realizing transfer is present.