Qubit(s) transfer in helical spin chains

Autor: Verma, Harshit, Chotorlishvili, L., Berakdar, J., Mishra, Sunil K.
Rok vydání: 2017
Předmět:
Zdroj: EPL 119 30001 (2017)
Druh dokumentu: Working Paper
DOI: 10.1209/0295-5075/119/30001
Popis: Qubit(s) transfer through a helical chain is studied. We consider the transfer of a single state and Bell states across a multiferroic spin chain and the possibility of an electric field control of the fidelity of the single state and the Bell pairs. We analyze pure and imperfect multiferroic spin chains. A scheme for an efficient transfer of spin states through a multiferroic channel relies on kicking by appropriate electric field pulses at regular interval. This electric field pulse sequence undermines the effect of impurity on the fidelity and improves the state transfer through the helical chain.
Comment: 7 pages, 10 figures
Databáze: arXiv