2020/12/07 by Abdullah Irfan, Irfan, Abdullah, Syed Furqan Abbas Hashmi +7 · 1 citation
Chemistry · Computer Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Quantum and electron transport phenomena
paper · pdf · doi:10.48550/arxiv.2012.03873
openalex publication_date 2020/12/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Efficient control over entanglement in spin chains is useful for quantum\ninformation processing applications. In this paper, we propose the use of a\ncombination of two different configurations of strong static and oscillating\nfields to control and generate near-perfect entanglement between any two spins\nin a spin chain, even in the presence of noise. This is made possible by the\nfact that our control fields not only decouple the spin chain from its\nenvironment but also selectively modify the spin-spin interactions. By suitably\ntuning these spin-spin interactions via the control fields, we show that the\nquantum state of any two spins in the spin chain can be made to be a Bell\nstate. We illustrate our results for various spin chains, such as the XY model,\nthe XYZ model, and the Ising spin chain.\n