@inproceedings{4e4829214aba456fa711efb4d4ef18c4,
title = "Perfect information transfer in neighbor-coupled spin chains",
abstract = "We study how to engineer parameters for perfect information transfer in neighbor-coupled spin chains. The 2N-dimensional Hilbert space associated with quantum information transfer over the spin chain can be projected into an N-dimensional subspace, so the Hamiltonian of the system will be reduced to a tridiagonal matrix in a standard basis. The functional relation between the parameters of the spin chain and the eigenvalue spectrum of the Hamiltonian, which can be determined by the perfect transfer conditions, are established. The task of finding all solutions to the parameters of perfect information transfer is accomplished by solving polynomial equations. All analytical solutions from 3 qubits to 9 qubits are presented. The results could be used to analyze structures of the chain or find particular chains with optimal properties.",
keywords = "Information transfer, Qunatum information, Spin chain, State transfer",
author = "Xin Chen and Yaoxiong Wang and Junhui Shi and Herschel Rabitz and Feng Shuang",
year = "2010",
language = "English (US)",
isbn = "9787894631046",
series = "Proceedings of the 29th Chinese Control Conference, CCC'10",
pages = "5913--5917",
booktitle = "Proceedings of the 29th Chinese Control Conference, CCC'10",
note = "29th Chinese Control Conference, CCC'10 ; Conference date: 29-07-2010 Through 31-07-2010",
}